Updated 2 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,762exploited flaws on CISA’s list

34added in the last 30 days

344new WordPress flaws this week

390,080entries in the database

89 results · page 1 of 2

Oct 21, 2026A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to exeCVE-2026-76524 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.8
A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user. This vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the memory management implementation of Snort 3 that could allow an unauthenticated, remote attacker CVE-2026-76489 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the memory management implementation of Snort 3 that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete error checking when Snort 3 processes files, which could cause unreleased memory. An attacker could exploit this vulnerability by sending a large number of files to be processed. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the detectCVE-2026-76445 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.3
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the detection engine to unexpectedly restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a flaw in logic handling when General Packet Radio Service (GPRS) Tunneling Protocol (GTP) extension headers are processed within the codec. An attacker could exploit this vulnerability by sending a crafted, fragmented UDP datagram that contains these headers to the Snort 3 Detection Engine of an affected device. A successful exploit could allow the attacker to cause the detection engine to enter an infinite loop, resulting in a DoS condition.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a cCVE-2026-20356 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.5
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20356 are related to issues concerning uncontrolled resource consumption that are grouped under the Common Weakness Enumeration (CWE) Base CWE-400.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a cCVE-2026-20291 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.8
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20291 are related to issues concerning improper privilege management that are grouped under the Common Weakness Enumeration (CWE) Base CWE-269.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a cCVE-2026-20236 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.5
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20236 are related to issues concerning incorrect calculation that are grouped under the Common Weakness Enumeration (CWE) Base CWE-682.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3 Detection Engine CVE-2026-20221 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause an unexpected restart of the Snort 3 Detection Engine. This vulnerability is due to improper handling of nested GRE traffic. An attacker could exploit this vulnerability by sending a crafted GRE payload through an affected device. A successful exploit could allow the attacker to trigger an unexpected reload of the Snort 3 Detection Engine, resulting in either a bypass or denial of service (DoS) condition, depending on device configuration. For more information, see the section of this advisory. The Snort 3 Detection Engine will restart automatically. No manual intervention is required.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026A vulnerability in the Snort 3 Visual Basic for Applications (VBA) Decompression Engine of multiple Cisco products could allow an unauthenticated, remote attackCVE-2026-20218 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the Snort 3 Visual Basic for Applications (VBA) Decompression Engine of multiple Cisco products could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a denial of service (DoS) condition.   This vulnerability is due to improper range checking when Snort 3 decompresses VBA data, which is user controlled. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine of a targeted device. A successful exploit could allow the attacker to cause an overflow of stack data, which could result in a DoS condition.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Teredo Detection Engine that could allow an unauthenticated, remote attacker to cause theCVE-2026-20197 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 Teredo Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete error checking when Snort 3 parses Teredo packets. An attacker could exploit this vulnerability by sending a crafted Teredo packet to a targeted device to be parsed by Snort. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Generic Routing Encapsulation (GRE) Detection Engine that could allow an unauthenticated,CVE-2026-20179 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 Generic Routing Encapsulation (GRE) Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete error checking when Snort 3 parses GRE packets. An attacker could exploit this vulnerability by sending a crafted GRE packet to a targeted device to be parsed by Snort. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a cCVE-2026-20043 · Network & remote access · Cisco · reported by psirt@cisco.comCritical 9
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20043 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 NetFlow Detection Engine that could allow an unauthenticated, remote attacker to cause thCVE-2026-20019 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 NetFlow Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete error checking when Snort 3 parses UDP Netflow Protocol packets. An attacker could exploit this vulnerability by sending a single crafted Netflow packet through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a DoS condition.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 21, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 SMTP MIME Decoder that could allow an unauthenticated, remote attacker to cause the SnortCVE-2026-20011 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 SMTP MIME Decoder that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a lack of error checking when the MIME fields of the SMTP header are parsed. An attacker could exploit this vulnerability by sending crafted SMTP packets through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine unexpectedly restarts.
Product
Cisco Open Source Snort3
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 16, 2026A vulnerability in SSL/TLS certificate parsing in the Snort 2 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticCVE-2026-20290 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in SSL/TLS certificate parsing in the Snort 2 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 2 Detection Engine to restart. This vulnerability is due to incomplete validation of the SSL certificate. An attacker could exploit this vulnerability by sending a crafted SSL connection setup request to be parsed by Snort 2. A successful exploit could allow the attacker to cause the Snort 2 Detection Engine to restart unexpectedly, resulting in a denial of service (DoS) condition.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause the Snort CVE-2026-20068 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete error checking when parsing remote procedure call (RPC) data. An attacker could exploit this vulnerability by sending crafted RPC packets through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine unexpectedly restarts.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause the Snort CVE-2026-20067 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection.  This vulnerability is due to incomplete error checking when parsing the Multicast DNS fields of the HTTP header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine unexpectedly restarts.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort CVE-2026-20066 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the JSTokenizer normalization logic when the HTTP inspection normalizes JavaScript. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly. JSTokenizer is not enabled by default.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort CVE-2026-20065 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the binder module initialization logic of the Snort Detection Engine. An attacker could exploit this vulnerability by sending certain packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 DetCVE-2026-20058 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. These vulnerabilities are due to improper error checking when decompressing VBA data. An attacker could exploit these vulnerabilities by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart, causing a DoS condition.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote CVE-2026-20057 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash.    This vulnerability is due to lack of proper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending a crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart causing a a denial of service (DoS) condition.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 DetCVE-2026-20054 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash.  This vulnerability is due to improper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to enter an infinite loop, causing a DoS condition.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 DetCVE-2026-20053 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper range checking when decompressing VBA data, which is user controlled. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause an overflow of heap data, which could cause a DoS condition.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026A vulnerability in the memory management handling for the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unautheCVE-2026-20052 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the memory management handling for the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a logic error in memory management when a device is performing Snort 3 SSL packet inspection. An attacker could exploit this vulnerability by sending crafted SSL packets through an established connection to be parsed by the Snort 3 Detection Engine. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine unexpectedly restarts.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026A vulnerability in the Snort 2 and Snort 3 deep packet inspection of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote CVE-2026-20007 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the Snort 2 and Snort 3 deep packet inspection of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured Snort rules and allow traffic onto the network that should have been dropped. This vulnerability is due to a logic error in the integration of the Snort Engine rules with Cisco Secure FTD Software that could allow different Snort rules to be hit when deep inspection of the packet is performed for the inner and outer connections. An attacker could exploit this vulnerability by sending crafted traffic to a targeted device that would hit configured Snort rules. A successful exploit could allow the attacker to send traffic to a network where it should have been denied.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026A vulnerability in the TLS cryptography functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauCVE-2026-20006 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the TLS cryptography functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service (DoS) condition. This vulnerability is due to improper implementation of the TLS protocol. An attacker could exploit this vulnerability by sending a crafted TLS packet to an affected system. A successful exploit could allow the attacker to cause a device that is running Cisco Secure FTD Software to drop network traffic, resulting in a DoS condition.  Note: TLS 1.3 is not affected by this vulnerability.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Mar 4, 2026Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort CVE-2026-20005 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine restarts unexpectedly.
Product
Cisco Secure Firewall Threat Defense (FTD) Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 15, 2025Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the Snort 3 DeCVE-2025-20360 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a lack of complete error checking when the MIME fields of the HTTP header are parsed. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine unexpectedly restarts.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 15, 2025Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the disclosureCVE-2025-20359 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.5
Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the disclosure of possible sensitive data or cause the Snort 3 Detection Engine to crash. This vulnerability is due to an error in the logic of buffer handling when the MIME fields of the HTTP header are parsed. This can result in a buffer under-read. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to induce one of two possible outcomes: the unexpected restarting of the Snort 3 Detection Engine, which could cause a denial of service (DoS) condition, or information disclosure of sensitive information in the Snort 3 data stream. Due to the under-read condition, it is possible that sensitive information that is not valid connection data could be returned.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Sep 9, 2025In pfSense CE /usr/local/www/snort/snort_ip_reputation.php, the value of the iplist parameter is not sanitized of directory traversal-related characters/stringsCVE-2025-34173 · Other software · Netgate · reported by VulnCheckMedium 5.3
In pfSense CE /usr/local/www/snort/snort_ip_reputation.php, the value of the iplist parameter is not sanitized of directory traversal-related characters/strings before being used to check if a file exists. While the contents of the file cannot be read, the server reveals whether a file exists, which allows an attacker to enumerate files on the target. The attacker must be authenticated with at least "WebCfg - Services: Snort package" permissions.
Product
pfSense CE
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record github.com redmine.pfsense.org
Aug 14, 2025A vulnerability in the packet inspection functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unaCVE-2025-20217 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the packet inspection functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to incorrect processing of traffic that is inspected by an affected device. An attacker could exploit this vulnerability by sending crafted traffic through the affected device. A successful exploit could allow the attacker to cause the affected device to enter an infinite loop while inspecting traffic, resulting in a DoS condition. The system watchdog will restart the Snort process automatically.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Aug 13, 2025Snort Report versions < 1.3.2 contains a remote command execution vulnerability in the nmap.php and nbtscan.php scripts.CVE-2011-10017 · Other software · Symmetrix Technologies · reported by VulnCheckCritical 10
Snort Report versions < 1.3.2 contains a remote command execution vulnerability in the nmap.php and nbtscan.php scripts. These scripts fail to properly sanitize user input passed via the target GET parameter, allowing attackers to inject arbitrary shell commands. Exploitation requires no authentication and can result in full compromise of the underlying system.
Product
Snort Report
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record raw.githubusercontent.com web.archive.org
Nov 18, 2024Multiple Cisco products are affected by a vulnerability in the Ethernet Frame Decoder of the Snort detection engine that could allow an unauthenticated, adCVE-2021-1285 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.4
Multiple Cisco products are affected by a vulnerability in the Ethernet Frame Decoder of the Snort detection engine that could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper handling of error conditions when processing Ethernet frames. An attacker could exploit this vulnerability by sending malicious Ethernet frames through an affected device. A successful exploit could allow the attacker to exhaust disk space on the affected device, which could result in administrators being unable to log in to the device or the device being unable to boot up correctly.Note: Manual intervention is required to recover from this situation. Customers are advised to contact the Cisco Technical Assistance Center (TAC) to help recover a device in this condition.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Product
Cisco UTD SNORT IPS Engine Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Nov 15, 2024Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configureCVE-2021-1494 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Nov 15, 2024A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condCVE-2022-20685 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.5
A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Product
Cisco Cyber Vision
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Oct 23, 2024A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allCVE-2024-20407 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies on an affected system. Devices that are configured with Snort 2 are not affected by this vulnerability. This vulnerability is due to a logic error when handling embryonic (half-open) TCP connections. An attacker could exploit this vulnerability by sending a crafted traffic pattern through an affected device. A successful exploit could allow unintended traffic to enter the network protected by the affected device.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 23, 2024A vulnerability in the TCP/IP traffic handling function of the Snort Detection Engine of Cisco Firepower Threat Defense (FTD) Software and Cisco FirePOWER ServiCVE-2024-20351 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the TCP/IP traffic handling function of the Snort Detection Engine of Cisco Firepower Threat Defense (FTD) Software and Cisco FirePOWER Services could allow an unauthenticated, remote attacker to cause legitimate network traffic to be dropped, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of TCP/IP network traffic. An attacker could exploit this vulnerability by sending a large amount of TCP/IP network traffic through the affected device. A successful exploit could allow the attacker to cause the Cisco FTD device to drop network traffic, resulting in a DoS condition. The affected device must be rebooted to resolve the DoS condition.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Oct 23, 2024Multiple Cisco products are affected by a vulnerability in the rate filtering feature of the Snort detection engine that could allow an unauthenticated, remote CVE-2024-20342 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the rate filtering feature of the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured rate limiting filter.  This vulnerability is due to an incorrect connection count comparison. An attacker could exploit this vulnerability by sending traffic through an affected device at a rate that exceeds a configured rate filter. A successful exploit could allow the attacker to successfully bypass the rate filter. This could allow unintended traffic to enter the network protected by the affected device.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
Oct 23, 2024A vulnerability in the Snort 2 and Snort 3 TCP and UDP detection engine of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series ApplianCVE-2024-20330 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Snort 2 and Snort 3 TCP and UDP detection engine of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause memory corruption, which could cause the Snort detection engine to restart unexpectedly. This vulnerability is due to improper memory management when the Snort detection engine processes specific TCP or UDP packets. An attacker could exploit this vulnerability by sending crafted TCP or UDP packets through a device that is inspecting traffic using the Snort detection engine. A successful exploit could allow the attacker to restart the Snort detection engine repeatedly, which could cause a denial of service (DoS) condition. The DoS condition impacts only the traffic through the device that is examined by the Snort detection engine. The device can still be managed over the network. Note: Once a memory block is corrupted, it cannot be cleared until the Cisco Firepower 2100 Series Appliance is manually reloaded. This means that the Snort detection engine could crash repeatedly, causing traffic that is processed by the Snort detection engine to be dropped until the d
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Sep 25, 2024A vulnerability in Cisco Unified Threat Defense (UTD) Snort Intrusion Prevention System (IPS) Engine for Cisco IOS XE Software could allow an unauthenticated, rCVE-2024-20508 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in Cisco Unified Threat Defense (UTD) Snort Intrusion Prevention System (IPS) Engine for Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass configured security policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of HTTP requests when they are processed by Cisco UTD Snort IPS Engine. An attacker could exploit this vulnerability by sending a crafted HTTP request through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process. If the action in case of Cisco UTD Snort IPS Engine failure is set to the default, fail-open, successful exploitation of this vulnerability could allow the attacker to bypass configured security policies. If the action in case of Cisco UTD Snort IPS Engine failure is set to fail-close, successful exploitation of this vulnerability could cause traffic that is configured to be inspected by Cisco UTD Snort IPS Engine to be dropped.
Product
Cisco UTD SNORT IPS Engine Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com
May 22, 2024Multiple Cisco products are affected by a vulnerability in the Snort Intrusion Prevention System (IPS) rule engine that could allow an unauthenticated, remote aCVE-2024-20363 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort Intrusion Prevention System (IPS) rule engine that could allow an unauthenticated, remote attacker to bypass the configured rules on an affected system. This vulnerability is due to incorrect HTTP packet handling. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 1, 2023A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions.CVE-2023-20267 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4
A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability by spoofing an IP address until they bypass the restriction. A successful exploit could allow the attacker to bypass location-based IP address restrictions.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 1, 2023Multiple Cisco products are affected by a vulnerability in Snort access control policies that could allow an unauthenticated, remote attacker to bypass the confCVE-2023-20246 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in Snort access control policies that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a logic error that occurs when the access control policies are being populated. An attacker could exploit this vulnerability by establishing a connection to an affected device. A successful exploit could allow the attacker to bypass configured access control rules on the affected system.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 1, 2023A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenCVE-2023-20083 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 1, 2023Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configuCVE-2023-20071 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a flaw in the FTP module of the Snort detection engine. An attacker could exploit this vulnerability by sending crafted FTP traffic through an affected device. A successful exploit could allow the attacker to bypass FTP inspection and deliver a malicious payload.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 1, 2023A vulnerability in the SSL/TLS certificate handling of Snort 3 Detection Engine integration with Cisco Firepower Threat Defense (FTD) Software could allow an unCVE-2023-20031 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4
A vulnerability in the SSL/TLS certificate handling of Snort 3 Detection Engine integration with Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a logic error that occurs when an SSL/TLS certificate that is under load is accessed when it is initiating an SSL connection. Under specific, time-based constraints, an attacker could exploit this vulnerability by sending a high rate of SSL/TLS connection requests to be inspected by the Snort 3 detection engine on an affected device. A successful exploit could allow the attacker to cause the Snort 3 detection engine to reload, resulting in either a bypass or a denial of service (DoS) condition, depending on device configuration. The Snort detection engine will restart automatically. No manual intervention is required.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 1, 2023A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat DefeCVE-2023-20270 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 15, 2022A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to causeCVE-2022-20950 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
A vulnerability in the interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 15, 2022Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenCVE-2022-20943 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition. Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details ["#details"] section of this advisory for more information. Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Nov 15, 2022Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenCVE-2022-20922 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.8
Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition. Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details ["#details"] section of this advisory for more information. Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record sec.cloudapps.cisco.com sec.cloudapps.cisco.com
May 3, 2022A vulnerability in the Snort rule evaluation function of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause CVE-2022-20767 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Snort rule evaluation function of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of the DNS reputation enforcement rule. An attacker could exploit this vulnerability by sending crafted UDP packets through an affected device to force a buildup of UDP connections. A successful exploit could allow the attacker to cause traffic that is going through the affected device to be dropped, resulting in a DoS condition. Note: This vulnerability only affects Cisco FTD devices that are running Snort 3.
Product
Cisco Firepower Threat Defense Software
What to do
Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD record tools.cisco.com tools.cisco.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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