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.
7 results
Jul 9, 2026Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the CVE-2026-60109 · Other software · zeek · reported by VulnCheckHigh 8.7
Zeek before 8.0.9 contains a null pointer dereference vulnerability in its Kerberos protocol analyzer that allows unauthenticated remote attackers to crash the sensor by sending a crafted KRB_ERROR message with error-code 25 (KDC_ERR_PREAUTH_REQUIRED) containing a PA-DATA element with padata-type 2, 3, 11, or 19. Attackers can exploit a parser and analyzer state mismatch where proc_padata() dereferences an uninitialized pa_data_element field selected by the wrong parsing arm, triggering a crash via a single UDP or TCP packet to port 88 without any credentials or prior authentication.
- Product
- zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 9, 2026Zeek before 8.0.9 contains an uncontrolled memory consumption vulnerability in the FTP analyzer that allows unauthenticated remote attackers to cause process teCVE-2026-60108 · Other software · zeek · reported by VulnCheckHigh 8.7
Zeek before 8.0.9 contains an uncontrolled memory consumption vulnerability in the FTP analyzer that allows unauthenticated remote attackers to cause process termination by sending a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line. Attackers can exploit the NVT_Analyzer component's lack of a maximum line length check, causing it to continuously double its internal buffer without bounds during base64 decoding of an attacker-controlled ADAT token, resulting in denial of service of the Zeek sensor.
- Product
- zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 1, 2024Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds write in their CVE-2023-7244 · Other software · CISA · reported by ics-cert@hq.dhs.govCritical 9.8
Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds write in their primary analyses function for Ethercat communication packets. This could allow an attacker to cause arbitrary code execution.
- Product
- Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 1, 2024 Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds write while anCVE-2023-7243 · Other software · CISA · reported by ics-cert@hq.dhs.govCritical 9.8
Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds write while analyzing specific Ethercat datagrams. This could allow an attacker to cause arbitrary code execution.
- Product
- Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Mar 1, 2024 Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds read during tCVE-2023-7242 · Other software · CISA · reported by ics-cert@hq.dhs.govHigh 8.2
Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds read during the process of analyzing a specific Ethercat packet. This could allow an attacker to crash the Zeek process and leak some information in memory.
- Product
- Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Sep 29, 2021An issue was discovered in zeek version 4.1.0.CVE-2021-41732 · Other software · zeek · reported by MITREHigh 7.5
An issue was discovered in zeek version 4.1.0. There is a HTTP request splitting vulnerability that will invalidate any ZEEK HTTP based security analysis. NOTE: the vendor's position is that the observed behavior is intended
- Product
- zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jul 17, 2019In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS becauseCVE-2019-12175 · Other software · Zeek · reported by MITREHigh 7.5
In Zeek Network Security Monitor (formerly known as Bro) before 2.6.2, a NULL pointer dereference in the Kerberos (aka KRB) protocol parser leads to DoS because a case-type index is mishandled.
- Product
- Zeek
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
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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