Tagged “cisco”
CVEs tagged cisco, newest first.
269 CVEsRSS
CVE-2025-20221Medium· 5.3Cisco IOS XE cEdge Information Disclosure Vulnerability
A vulnerability in the packet filtering features of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to bypass Layer 3 and Layer 4 traffic filters. This vulnerability is due to improper traffic filtering cond…
CVE-2025-20154High· 8.6Cisco IOS, IOS XE and IOS XR Software TWAMP Denial of Service Vulnerability
A vulnerability in the Two-Way Active Measurement Protocol (TWAMP) server feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial…
CVE-2025-20137Medium· 4.7Cisco IOS Software on Cisco Catalyst 1000 and 2960L Switches Access Control List Bypass Vulnerability (CVE-2025-20137)
A vulnerability in the access control list (ACL) programming of Cisco IOS Software that is running on Cisco Catalyst 1000 Switches and Cisco Catalyst 2960L Switches could allow an unauthenticated, remote attacker to bypass a configured ACL…
CVE-2025-20192High· 7.7A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition
A vulnerability in the Internet Key Exchange version 1 (IKEv1) implementation of Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The attacker must have valid IKEv1 VPN cre…
CVE-2025-20196Medium· 5.3Cisco IOx Application Hosting Environment Denial of Service Vulnerbility
A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Cisco IOx application hosting environment to stop responding, res…
CVE-2025-20151Medium· 4.3Cisco IOS and IOS XE Software SNMPv3 Configuration Restriction Vulnerability (CVE-2025-20151)
A vulnerability in the implementation of the Simple Network Management Protocol Version 3 (SNMPv3) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to poll an affected device using SNMP,…
CVE-2025-20138High· 8.8Cisco IOS XR Software CLI Privilege Escalation Vulnerability (CVE-2025-20138)
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary commands as root on the underlying operating system of an affected device. This vulnerability is due to insufficient v…
CVE-2025-20115High· 8.6PoCCisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
A vulnerability in confederation implementation for the Border Gateway Protocol (BGP) in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to a …
CVE-2025-20142High· 8.6Cisco IOS XR Software for ASR 9000 Series Routers L2VPN Denial of Service Vulnerability
A vulnerability in the IPv4 access control list (ACL) feature and quality of service (QoS) policy feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9…
CVE-2025-20143Medium· 6.7Cisco IOS XR Software Secure Boot Bypass Vulnerability (CVE-2025-20143)
A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Secure Boot functionality and load unverified software on an affected device. To exploit this vuln…
CVE-2025-20146High· 8.6Cisco IOS XR Software for ASR 9000 Series Routers Layer 3 Multicast Routing Denial of Service Vulnerability
A vulnerability in the Layer 3 multicast feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unaut…
CVE-2025-20175High· 7.7Cisco IOS and IOS XE SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20169High· 7.7Cisco IOS, IOS XE, and IOS XR SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20174High· 7.7Cisco IOS and IOS XE SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20171High· 7.7Cisco IOS and IOS XE SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20170High· 7.7Cisco IOS and IOS XE SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20176High· 7.7Cisco IOS and IOS XE SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20172High· 7.7Cisco IOS, IOS XE, and IOS XR SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2025-20173High· 7.7Cisco IOS and IOS XE SNMP Denial of Service Vulnerabilities
Multiple vulnerabilities in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) co…
CVE-2024-20260High· 8.6Update for September 16, 2026: The original 1.0 version of this advisory was specific to the Cisco Adaptive Security Virtual Appliance (ASAv) and Cisco Secure Firewall Threat Defense Virtual (FTDv) models
Update for September 16, 2026: The original 1.0 version of this advisory was specific to the Cisco Adaptive Security Virtual Appliance (ASAv) and Cisco Secure Firewall Threat Defense Virtual (FTDv) models. However, it was later found tha…
CVE-2024-20350High· 7.5Cisco Catalyst Center Static SSH Host Key Vulnerability (CVE-2024-20350)
A vulnerability in the SSH server of Cisco Catalyst Center, formerly Cisco DNA Center, could allow an unauthenticated, remote attacker to impersonate a Cisco Catalyst Center appliance. This vulnerability is due to the presence of a stat…
CVE-2024-20436High· 8.6Cisco IOS and IOS XE Software WebUI Denial of Service Vulnerability
A vulnerability in the HTTP Server feature of Cisco IOS XE Software when the Telephony Service feature is enabled could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This v…
CVE-2024-20434Medium· 4.3Cisco Catalyst 9000 Series Switches Denial of Service Vulnerability (CVE-2024-20434)
A vulnerability in Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the control plane of an affected device. This vulnerability is due to improper handling of frames…
CVE-2024-20398High· 8.8Cisco IOS XR Software Local Privilege Escalation Vulnerability
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to obtain read/write file system access on the underlying operating system of an affected device. This vulnerability is due to insufficient…
CVE-2024-20304High· 8.6Cisco IOS XR Software Packet Memory Exhaustion Vulnerability
A vulnerability in the multicast traceroute version 2 (Mtrace2) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust the UDP packet memory of an affected device. This vulnerability exists because t…
CVE-2024-20390Medium· 5.3Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability (CVE-2024-20390)
A vulnerability in the Dedicated XML Agent feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on XML TCP listen port 38751. This vulnerability is due to a lack of proper e…
CVE-2024-20343Medium· 5.5Cisco IOS XR Software CLI Arbitrary File Read Vulnerability (CVE-2024-20343)
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to read any file in the file system of the underlying Linux operating system. The attacker must have valid credentials on the affected device.…
CVE-2024-20317High· 7.4Cisco IOS XR Software Layer 2 Services Denial of Service Vulnerability
A vulnerability in the handling of specific Ethernet frames by Cisco IOS XR Software for various Cisco Network Convergence System (NCS) platforms could allow an unauthenticated, adjacent attacker to cause critical priority packets to be dr…
CVE-2024-20373Medium· 5.3Cisco IOS and Cisco IOS XE SNMP Extended ACL Bypass Vulnerability
A vulnerability in the implementation of the Simple Network Management Protocol (SNMP) IPv4 access control list (ACL) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to perform SNMP p…
CVE-2024-20324Medium· 5.5WLAN config leak for lower privilege levels
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, low-privileged, local attacker to access WLAN configuration details including passwords. This vulnerability is due to improper privilege checks. An attack…