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

589 results · page 3 of 12

Mar 27, 2024A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexCVE-2024-20259 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the DHCP snooping feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a crafted IPv4 DHCP request packet being mishandled when endpoint analytics are enabled. An attacker could exploit this vulnerability by sending a crafted DHCP request through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: The attack vector is listed as network because a DHCP relay anywhere on the network could allow exploits from networks other than the adjacent one.
Product
Cisco IOS XE 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 25, 2023Cisco IOS XE Web UI Command Injection VulnerabilityCVE-2023-20273 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedHigh 7.2
Cisco IOS XE contains a command injection vulnerability in the web user interface. When chained with CVE-2023-20198, the attacker can leverage the new local user to elevate privilege to root and write the implant to the file system. Cisco identified CVE-2023-20273 as the vulnerability exploited to deploy the implant. CVE-2021-1435, previously associated with the exploitation events, is no longer believed to be related to this activity.
Product
Cisco IOS XE Web UI
On CISA’s list since
Oct 23, 2023 (federal fix deadline Oct 27, 2023)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Oct 16, 2023Cisco IOS XE Web UI Privilege Escalation VulnerabilityCVE-2023-20198 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedCritical 10
Cisco IOS XE Web UI contains a privilege escalation vulnerability in the web user interface that could allow a remote, unauthenticated attacker to create an account with privilege level 15 access. The attacker can then use that account to gain control of the affected device.
Product
IOS XE Web UI
On CISA’s list since
Oct 16, 2023 (federal fix deadline Oct 20, 2023)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Oct 4, 2023A vulnerability in the on-device application development workflow feature for the Cisco IOx application hosting infrastructure in Cisco IOS XE Software could alCVE-2023-20235 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.5
A vulnerability in the on-device application development workflow feature for the Cisco IOx application hosting infrastructure in Cisco IOS XE Software could allow an authenticated, remote attacker to access the underlying operating system as the root user. This vulnerability exists because Docker containers with the privileged runtime option are not blocked when they are in application development mode. An attacker could exploit this vulnerability by using the Docker CLI to access an affected device. The application development workflow is meant to be used only on development systems and not in production systems.
Product
Cisco IOS XE 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 27, 2023A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected device.CVE-2023-20231 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.8
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI. A successful exploit could allow the attacker to execute arbitrary Cisco IOS XE Software CLI commands with level 15 privileges. Note: This vulnerability is exploitable only if the attacker obtains the credentials for a Lobby Ambassador account. This account is not configured by default.
Product
Cisco IOS XE 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 27, 2023A vulnerability in the Layer 2 Tunneling Protocol (L2TP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of sCVE-2023-20227 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Layer 2 Tunneling Protocol (L2TP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain L2TP packets. An attacker could exploit this vulnerability by sending crafted L2TP packets to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability.
Product
Cisco IOS XE 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 27, 2023A vulnerability in Application Quality of Experience (AppQoE) and Unified Threat Defense (UTD) on Cisco IOS XE Software could allow an unauthenticated, remote aCVE-2023-20226 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in Application Quality of Experience (AppQoE) and Unified Threat Defense (UTD) on Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to the mishandling of a crafted packet stream through the AppQoE or UTD application. An attacker could exploit this vulnerability by sending a crafted packet stream through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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 27, 2023A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers could allow an unauthenticated, adjacent attCVE-2023-20202 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.1
A vulnerability in the Wireless Network Control daemon (wncd) of Cisco IOS XE Software for Wireless LAN Controllers could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper memory management. An attacker could exploit this vulnerability by sending a series of network requests to an affected device. A successful exploit could allow the attacker to cause the wncd process to consume available memory and eventually cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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 27, 2023A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could aCVE-2023-20187 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.
Product
Cisco IOS XE 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 27, 2023A vulnerability in the Authentication, Authorization, and Accounting (AAA) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated,CVE-2023-20186 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8
A vulnerability in the Authentication, Authorization, and Accounting (AAA) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to bypass command authorization and copy files to or from the file system of an affected device using the Secure Copy Protocol (SCP). This vulnerability is due to incorrect processing of SCP commands in AAA command authorization checks. An attacker with valid credentials and level 15 privileges could exploit this vulnerability by using SCP to connect to an affected device from an external machine. A successful exploit could allow the attacker to obtain or change the configuration of the affected device and put files on or retrieve files from the affected device.
Product
IOS
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 27, 2023Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write VulnerabilityCVE-2023-20109 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedMedium 6.6
Cisco IOS and IOS XE contain an out-of-bounds write vulnerability in the Group Encrypted Transport VPN (GET VPN) feature that could allow an authenticated, remote attacker who has administrative control of either a group member or a key server to execute malicious code or cause a device to crash.
Product
IOS and IOS XE
On CISA’s list since
Oct 10, 2023 (federal fix deadline Oct 31, 2023)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog sec.cloudapps.cisco.com sec.cloudapps.cisco.com
Sep 27, 2023A vulnerability in Cisco IOS XE Software for Cisco Catalyst 3650 and Catalyst 3850 Series Switches could allow an unauthenticated, remote attacker to cause an aCVE-2023-20033 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in Cisco IOS XE Software for Cisco Catalyst 3650 and Catalyst 3850 Series Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper resource management when processing traffic that is received on the management interface. An attacker could exploit this vulnerability by sending a high rate of traffic to the management interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the access point (AP) joining process of the Control and Provisioning of Wireless Access Points (CAPWAP) protocol of Cisco IOS XE Software foCVE-2023-20100 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.8
A vulnerability in the access point (AP) joining process of the Control and Provisioning of Wireless Access Points (CAPWAP) protocol of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a logic error that occurs when certain conditions are met during the AP joining process. An attacker could exploit this vulnerability by adding an AP that is under their control to the network. The attacker then must ensure that the AP successfully joins an affected wireless controller under certain conditions. Additionally, the attacker would need the ability to restart a valid AP that was previously connected to the controller. A successful exploit could allow the attacker to cause the affected device to restart unexpectedly, resulting in a DoS condition.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches could allow an authenticated, local attacker with level-15 privileges or an unaCVE-2023-20082 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.1
A vulnerability in Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to the device to execute persistent code at boot time and break the chain of trust. This vulnerability is due to errors that occur when retrieving the public release key that is used for image signature verification. An attacker could exploit this vulnerability by modifying specific variables in the Serial Peripheral Interface (SPI) flash memory of an affected device. A successful exploit could allow the attacker to execute persistent code on the underlying operating system. Note: In Cisco IOS XE Software releases 16.11.1 and later, the complexity of an attack using this vulnerability is high. However, an attacker with level-15 privileges could easily downgrade the Cisco IOS XE Software on a device to a release that would lower the attack complexity.
Product
Cisco IOS XE ROMMON 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
Mar 23, 2023A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker tCVE-2023-20080 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the IPv6 DHCP version 6 (DHCPv6) relay and server features of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to insufficient validation of data boundaries. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly.
Product
Cisco IOS
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
Mar 23, 2023A vulnerability in the fragmentation handling code of tunnel protocol packets in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause CVE-2023-20072 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the fragmentation handling code of tunnel protocol packets in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected system to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of large fragmented tunnel protocol packets. One example of a tunnel protocol is Generic Routing Encapsulation (GRE). An attacker could exploit this vulnerability by sending crafted fragmented packets to an affected system. A successful exploit could allow the attacker to cause the affected system to reload, resulting in a DoS condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the HTTP-based client profiling feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacentCVE-2023-20067 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.4
A vulnerability in the HTTP-based client profiling feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of received traffic. An attacker could exploit this vulnerability by sending crafted traffic through a wireless access point. A successful exploit could allow the attacker to cause CPU utilization to increase, which could result in a DoS condition on an affected device and could cause new wireless client associations to fail. Once the offending traffic stops, the affected system will return to an operational state and new client associations will succeed.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform a directory traversal and access resources that CVE-2023-20066 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.5
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to perform a directory traversal and access resources that are outside the filesystem mountpoint of the web UI. This vulnerability is due to an insufficient security configuration. An attacker could exploit this vulnerability by sending a crafted request to the web UI. A successful exploit could allow the attacker to gain read access to files that are outside the filesystem mountpoint of the web UI. Note: These files are located on a restricted filesystem that is maintained for the web UI. There is no ability to write to any files on this filesystem.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the Cisco IOx application hosting subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to roCVE-2023-20065 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.8
A vulnerability in the Cisco IOx application hosting subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to root on an affected device. This vulnerability is due to insufficient restrictions on the hosted application. An attacker could exploit this vulnerability by logging in to and then escaping the Cisco IOx application container. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges.CVE-2023-20035 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.8
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges. This vulnerability is due to insufficient input validation by the system CLI. An attacker with privileges to run commands could exploit this vulnerability by first authenticating to an affected device using either local terminal access or a management shell interface and then submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges. An attacker with limited user privileges could use this vulnerability to gain complete control over the system. Note: For additional information about specific impacts, see the Details section of this advisory.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the Meraki onboarding feature of Cisco IOS XE Software could allow an authenticated, local attacker to gain root level privileges on an affecCVE-2023-20029 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4.4
A vulnerability in the Meraki onboarding feature of Cisco IOS XE Software could allow an authenticated, local attacker to gain root level privileges on an affected device. This vulnerability is due to insufficient memory protection in the Meraki onboarding feature of an affected device. An attacker could exploit this vulnerability by modifying the Meraki registration parameters. A successful exploit could allow the attacker to elevate privileges to root.
Product
Cisco IOS XE 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
Mar 23, 2023A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly (VFR) feature of Cisco IOS XE Software could allow an unauthenticated, remoteCVE-2023-20027 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly (VFR) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper reassembly of large packets that occurs when VFR is enabled on either a tunnel interface or on a physical interface that is configured with a maximum transmission unit (MTU) greater than 4,615 bytes. An attacker could exploit this vulnerability by sending fragmented packets through a VFR-enabled interface on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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 10, 2022A vulnerability in the software image verification functionality of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticatedCVE-2022-20944 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.1
A vulnerability in the software image verification functionality of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. This vulnerability is due to an improper check in the code function that manages the verification of the digital signatures of system image files during the initial boot process. An attacker could exploit this vulnerability by loading unsigned software on an affected device. A successful exploit could allow the attacker to boot a malicious software image or execute unsigned code and bypass the image verification check part of the boot process of the affected device. To exploit this vulnerability, the attacker needs either unauthenticated physical access to the device or privileged access to the root shell on the device. Note: In Cisco IOS XE Software releases 16.11.1 and later, root shell access is protected by the Consent Token mechanism. However, an attacker with level-15 privileges could easily downgrade the Cisco IOS XE Software running on a device to a release where root shell access is more readily available.
Product
Cisco IOS XE 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
Oct 10, 2022A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected devCVE-2022-20920 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.7
A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to improper handling of resources during an exceptional situation. An attacker could exploit this vulnerability by continuously connecting to an affected device and sending specific SSH requests. A successful exploit could allow the attacker to cause the affected device to reload.
Product
Cisco IOS
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
Oct 10, 2022A vulnerability in the implementation of IPv6 VPN over MPLS (6VPE) with Zone-Based Firewall (ZBFW) of Cisco IOS XE Software could allow an unauthenticated, adjaCVE-2022-20915 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.4
A vulnerability in the implementation of IPv6 VPN over MPLS (6VPE) with Zone-Based Firewall (ZBFW) of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error handling of an IPv6 packet that is forwarded from an MPLS and ZBFW-enabled interface in a 6VPE deployment. An attacker could exploit this vulnerability by sending a crafted IPv6 packet sourced from a device on the IPv6-enabled virtual routing and forwarding (VRF) interface through the affected device. A successful exploit could allow the attacker to reload the device, resulting in a DoS condition.
Product
Cisco IOS XE 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
Oct 10, 2022A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family SwitchesCVE-2022-20870 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation of IPv4 traffic. An attacker could exploit this vulnerability by sending a malformed packet out of an affected MPLS-enabled interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Oct 10, 2022A vulnerability in the password-recovery disable feature of Cisco IOS XE ROM Monitor (ROMMON) Software for Cisco Catalyst Switches could allow an unauthenticateCVE-2022-20864 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4.6
A vulnerability in the password-recovery disable feature of Cisco IOS XE ROM Monitor (ROMMON) Software for Cisco Catalyst Switches could allow an unauthenticated, local attacker to recover the configuration or reset the enable password. This vulnerability is due to a problem with the file and boot variable permissions in ROMMON. An attacker could exploit this vulnerability by rebooting the switch into ROMMON and entering specific commands through the console. A successful exploit could allow the attacker to read any file or reset the enable password.
Product
Cisco IOS XE 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
Oct 10, 2022A vulnerability in the DNS application layer gateway (ALG) functionality that is used by Network Address Translation (NAT) in Cisco IOS XE Software could allow CVE-2022-20837 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the DNS application layer gateway (ALG) functionality that is used by Network Address Translation (NAT) in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to a logic error that occurs when an affected device inspects certain TCP DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through the affected device that is performing NAT for DNS packets. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition on the affected device. Note: This vulnerability can be exploited only by sending IPv4 TCP packets through an affected device. This vulnerability cannot be exploited by sending IPv6 traffic.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the 802.11 association frame validation of Cisco Catalyst 9100 Series Access Points (APs) could allow an unauthenticated, adjacent attacker tCVE-2022-20945 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.4
A vulnerability in the 802.11 association frame validation of Cisco Catalyst 9100 Series Access Points (APs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of certain parameters within association request frames received by the AP. An attacker could exploit this vulnerability by sending a crafted 802.11 association request to a nearby device. An exploit could allow the attacker to unexpectedly reload the device, resulting in a DoS condition.
Product
Cisco Aironet Access Point Software (IOS XE Controller)
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
Sep 30, 2022A vulnerability in the processing of malformed Common Industrial Protocol (CIP) packets that are sent to Cisco IOS Software and Cisco IOS XE Software could alloCVE-2022-20919 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the processing of malformed Common Industrial Protocol (CIP) packets that are sent to Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation during processing of CIP packets. An attacker could exploit this vulnerability by sending a malformed CIP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a DoS condition.
Product
Cisco IOS
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
Sep 30, 2022A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in Cisco IOS XE Wireless Controller Software CVE-2022-20856 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) Mobility messages in Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a logic error and improper management of resources related to the handling of CAPWAP Mobility messages. An attacker could exploit this vulnerability by sending crafted CAPWAP Mobility packets to an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device. This would cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the self-healing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points could allow an authenticaCVE-2022-20855 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.9
A vulnerability in the self-healing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points could allow an authenticated, local attacker to escape the restricted controller shell and execute arbitrary commands on the underlying operating system of the access point. This vulnerability is due to improper checks throughout the restart of certain system processes. An attacker could exploit this vulnerability by logging on to an affected device and executing certain CLI commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying OS as root. To successfully exploit this vulnerability, an attacker would need valid credentials for a privilege level 15 user of the wireless controller.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected CVE-2022-20851 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.5
A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI API. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with root privileges. To exploit this vulnerability, an attacker must have valid Administrator privileges on the affected device.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the CLI of stand-alone Cisco IOS XE SD-WAN Software and Cisco SD-WAN Software could allow an authenticated, local attacker to delete arbitrarCVE-2022-20850 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.5
A vulnerability in the CLI of stand-alone Cisco IOS XE SD-WAN Software and Cisco SD-WAN Software could allow an authenticated, local attacker to delete arbitrary files from the file system of an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by injecting arbitrary file path information when using commands in the CLI of an affected device. A successful exploit could allow the attacker to delete arbitrary files from the file system of the affected device.
Product
Cisco SD-WAN Solution
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
Sep 30, 2022A vulnerability in the UDP processing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points could allowCVE-2022-20848 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the UDP processing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of UDP datagrams. An attacker could exploit this vulnerability by sending malicious UDP datagrams to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, rCVE-2022-20847 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the DHCP processing functionality of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of DHCP messages. An attacker could exploit this vulnerability by sending malicious DHCP messages to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the Simple Network Management Protocol (SNMP) of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an authenCVE-2022-20810 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.5
A vulnerability in the Simple Network Management Protocol (SNMP) of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an authenticated, remote attacker to access sensitive information. This vulnerability is due to insufficient restrictions that allow a sensitive configuration detail to be disclosed. An attacker could exploit this vulnerability by retrieving data through SNMP read-only community access. A successful exploit could allow the attacker to view Service Set Identifier (SSID) preshared keys (PSKs) that are configured on the affected device.
Product
Cisco IOS XE 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
Sep 30, 2022A vulnerability in the client forwarding code of multiple Cisco Access Points (APs) could allow an unauthenticated, adjacent attacker to inject packets from theCVE-2022-20728 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4.7
A vulnerability in the client forwarding code of multiple Cisco Access Points (APs) could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards packets that are destined to a wireless client if they are received on the native VLAN. An attacker could exploit this vulnerability by obtaining access to the native VLAN and directing traffic directly to the client through their MAC/IP combination. A successful exploit could allow the attacker to bypass VLAN separation and potentially also bypass any Layer 3 protection mechanisms that are deployed.
Product
Cisco Aironet Access Point Software (IOS XE Controller)
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
Apr 15, 2022A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial ofCVE-2022-20697 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper resource management in the HTTP server code. An attacker could exploit this vulnerability by sending a large number of HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS
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
Apr 15, 2022A vulnerability in the implementation of the Resource Public Key Infrastructure (RPKI) feature of Cisco IOS XE Software could allow an unauthenticated, remote aCVE-2022-20694 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.8
A vulnerability in the implementation of the Resource Public Key Infrastructure (RPKI) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Border Gateway Protocol (BGP) process to crash, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of a specific RPKI to Router (RTR) Protocol packet header. An attacker could exploit this vulnerability by compromising the RPKI validator server and sending a specifically crafted RTR packet to an affected device. Alternatively, the attacker could use man-in-the-middle techniques to impersonate the RPKI validator server and send a crafted RTR response packet over the established RTR TCP connection to the affected device. A successful exploit could allow the attacker to cause a DoS condition because the BGP process could constantly restart and BGP routing could become unstable.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected CVE-2022-20693 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 4.7
A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to perform an injection attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI API. A successful exploit could allow the attacker to inject commands to the underlying operating system with root privileges.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the NETCONF over SSH feature of Cisco IOS XE Software could allow a low-privileged, authenticated, remote attacker to cause a denial of serviCVE-2022-20692 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.7
A vulnerability in the NETCONF over SSH feature of Cisco IOS XE Software could allow a low-privileged, authenticated, remote attacker to cause a denial of service condition (DoS) on an affected device. This vulnerability is due to insufficient resource management. An attacker could exploit this vulnerability by initiating a large number of NETCONF over SSH connections. A successful exploit could allow the attacker to exhaust resources, causing the device to reload and resulting in a DoS condition on an affected device.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst CVE-2022-20684 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.4
A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition on the device. This vulnerability is due to a lack of input validation of the information used to generate an SNMP trap related to a wireless client connection event. An attacker could exploit this vulnerability by sending an 802.1x packet with crafted parameters during the wireless authentication setup phase of a connection. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the Application Visibility and Control (AVC-FNF) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could aCVE-2022-20683 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Application Visibility and Control (AVC-FNF) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient packet verification for traffic inspected by the AVC feature. An attacker could exploit this vulnerability by sending crafted packets from the wired network to a wireless client, resulting in the crafted packets being processed by the wireless controller. A successful exploit could allow the attacker to cause a crash and reload of the affected device, resulting in a DoS condition.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the CataCVE-2022-20682 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to inadequate input validation of incoming CAPWAP packets encapsulating multicast DNS (mDNS) queries. An attacker could exploit this vulnerability by connecting to a wireless network and sending a crafted mDNS query, which would flow through and be processed by the wireless controller. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the CLI of Cisco IOS XE Software for Cisco Catalyst 9000 Family Switches and Cisco Catalyst 9000 Family Wireless Controllers could allow an aCVE-2022-20681 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.8
A vulnerability in the CLI of Cisco IOS XE Software for Cisco Catalyst 9000 Family Switches and Cisco Catalyst 9000 Family Wireless Controllers could allow an authenticated, local attacker to elevate privileges to level 15 on an affected device. This vulnerability is due to insufficient validation of user privileges after the user executes certain CLI commands. An attacker could exploit this vulnerability by logging in to an affected device as a low-privileged user and then executing certain CLI commands. A successful exploit could allow the attacker to execute arbitrary commands with level 15 privileges on the affected device.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, CVE-2022-20679 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 6.8
A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload. To exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. All network devices between the attacker and the affected device must support an MTU of 1800 bytes or greater. This access requirement could limit the possibility of a successful exploit.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resultiCVE-2022-20678 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 8.6
A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload.
Product
Cisco IOS XE 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
Apr 15, 2022A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege CVE-2022-20676 · Network & remote access · Cisco · reported by psirt@cisco.comMedium 5.1
A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.
Product
Cisco IOS XE 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
Oct 20, 2021A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges.CVE-2021-1529 · Network & remote access · Cisco · reported by psirt@cisco.comHigh 7.8
A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.
Product
Cisco IOS XE SD-WAN 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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