Cisco has 555 CVEs on record between 2017 and 2026. Disclosure cadence is accelerating: 178 in the last 90 days against 27 in the 90 before. The busiest recent month was September 2026 with 96. The median CVSS is 7.4 (high), with 77 rated critical. 4% have been exploited in the wild, in line with the corpus average. When CISA adds a Cisco CVE to KEV it happens fast: a median of 6 days after publication (18 cases). The dominant weakness classes are CWE-20 (41) and CWE-400 (33). Most affected products: secure_firewall_threat_defense (75), identity_services_engine (33), Cisco IOS XE Software (23).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 4% vs 1% corpus
- Median CVSS
- 7.4
- Publish → KEV
- 6 d median(18)
- Last 90 days
- 178 prev 27
Weakness classes
Products
- secure_firewall_threat_defense 75
- identity_services_engine 33
- Cisco IOS XE Software 23
- Cisco Identity Services Engine Software 22
- IOS 22
- enterprise_nfv_infrastructure_software 21
Worst active — by depth score
CVE-2026-20079Critical· 10.0A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access …98CVE-2026-76460Critical· 10.0A vulnerability in an API of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass authentication. This vulnerability is due to insufficient authentication control on an API endpoint95CVE-2026-20230High· 8.6A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forg…90CVE-2026-76504Critical· 9.8A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user. This vulnerability is …87CVE-2025-20393Critical· 10.0Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability86
Cisco vulnerabilities
CVEs affecting Cisco, newest first. Open any entry for full detail, references, and exploit status.
555 CVEsRSS
CVE-2024-20267High· 8.6Cisco NX-OS Software MPLS IPv6 Denial of Serice Vulnerability
A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traff…
CVE-2023-20268Medium· 4.7Cisco Access Point Software Uncontrolled Resource Consumption Vulnerability (CVE-2023-20268)
A vulnerability in the packet processing functionality of Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to exhaust resources on an affected device. This vulnerability is due to insufficient managemen…
CVE-2023-20176Medium· 5.8Cisco Aironet Access Points Denial of Service
A vulnerability in the networking component of Cisco access point (AP) software could allow an unauthenticated, remote attacker to cause a temporary disruption of service. This vulnerability is due to overuse of AP resources. An attacke…
CVE-2023-20033High· 8.6Cisco IOS XE Software for Catalyst 3650 and Catalyst 3850 Switches Denial of Service Vulnerability
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) c…
CVE-2023-20193Medium· 6.0A vulnerability in the Embedded Service Router (ESR) of Cisco ISE could allow an authenticated, local attacker to read, write, or delete arbitrary files on the underlying operating system and escalate their privileges to root
A vulnerability in the Embedded Service Router (ESR) of Cisco ISE could allow an authenticated, local attacker to read, write, or delete arbitrary files on the underlying operating system and escalate their privileges to root. To exploit…
CVE-2023-20269Medium· 5.0CISA KEVA vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a brute force attack in an …
A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a brute force attack in an …
CVE-2023-20185High· 7.4Cisco ACI Multi-Site CloudSec Encryption Information Disclosure Vulnerability (CVE-2023-20185)
A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic. This vulnerabi…
CVE-2023-20178High· 7.8PoCA vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges t…
A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges t…
CVE-2023-20094Medium· 4.3Cisco TelePresence Collaboration Endpoint and RoomOS Software Information Disclosure Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS could allow an attacker to elevate privileges, overwrite arbitrary files, or view sensitive data on an affected device. For more information abo…
CVE-2023-20093Medium· 4.4Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Overwrite Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS could allow an attacker to elevate privileges, overwrite arbitrary files, or view sensitive data on an affected device. For more information abo…
CVE-2023-20092Medium· 4.4Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Overwrite Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS could allow an attacker to elevate privileges, overwrite arbitrary files, or view sensitive data on an affected device. For more information abo…
CVE-2023-20091Medium· 5.1Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Overwrite Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS could allow an attacker to elevate privileges, overwrite arbitrary files, or view sensitive data on an affected device. For more information abo…
CVE-2023-20090Medium· 6.7Cisco TelePresence Collaboration Endpoint and RoomOS Software Privilege Escalation Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS could allow an attacker to elevate privileges, overwrite arbitrary files, or view sensitive data on an affected device. For more information abo…
CVE-2023-20004Medium· 4.4Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Write Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS could allow an attacker to elevate privileges, overwrite arbitrary files, or view sensitive data on an affected device. For more information abo…
CVE-2023-20035High· 7.8Cisco IOS XE SD-WAN Software Command Injection Vulnerability (CVE-2023-20035)
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…
CVE-2023-20056Medium· 6.5Cisco Access Point Software Denial of Service
A vulnerability in the management CLI of Cisco access point (AP) software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input v…
CVE-2023-20112High· 7.4Cisco Access Point Software Association Request Denial of Service Vulnerability (CVE-2023-20112)
A vulnerability in Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of certain pa…
CVE-2023-20097Medium· 4.6Cisco Access Points (AP) Command Injection Vulnerability
A vulnerability in Cisco access points (AP) software could allow an authenticated, local attacker to inject arbitrary commands and execute them with root privileges. This vulnerability is due to improper input validation of commands tha…
CVE-2023-20002Medium· 4.4Cisco TelePresence CE and RoomOS Software Server-Side Request Forgery Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an authenticated, local attacker to conduct server-side request forgery (SSRF) attacks through an affected device or …
CVE-2023-20008Medium· 4.4Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Write Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an authenticated, local attacker to conduct server-side request forgery (SSRF) attacks through an affected device or …
CVE-2022-20955Medium· 4.4Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Write Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an attacker to conduct path traversal attacks, view sensitive data, or write arbitrary files on an affected device. …
CVE-2022-20954Medium· 4.4Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Write Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an attacker to conduct path traversal attacks, view sensitive data, or write arbitrary files on an affected device. …
CVE-2022-20953Medium· 5.0Cisco TelePresence Collaboration Endpoint and RoomOS Software Information Disclosure Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an attacker to conduct path traversal attacks, view sensitive data, or write arbitrary files on an affected device. …
CVE-2022-20811Medium· 5.5Cisco TelePresence Collaboration Endpoint and RoomOS Software Path Traversal Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an attacker to conduct path traversal attacks, view sensitive data, or write arbitrary files on an affected device. …
CVE-2022-20776Medium· 5.1Cisco TelePresence Collaboration Endpoint and RoomOS Software Path Traversal Vulnerability
Multiple vulnerabilities in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an attacker to conduct path traversal attacks, view sensitive data, or write arbitrary files on an affected device. …
CVE-2022-20931Medium· 6.5Cisco Touch 10 Device Downgrade Attack Vulnerability
A vulnerability in the version control of Cisco TelePresence CE Software for Cisco Touch 10 Devices could allow an unauthenticated, adjacent attacker to install an older version of the software on an affected device. This vulnerability …
CVE-2022-20793Medium· 6.8Cisco Touch 10 Device Insufficient Identity Verification Vulnerability
A vulnerability in pairing process of Cisco TelePresence CE Software and RoomOS Software for Cisco Touch 10 Devices could allow an unauthenticated, remote attacker to impersonate a legitimate device and pair with an affected device. Thi…
CVE-2022-20818High· 7.8PoCMultiple vulnerabilities in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges
Multiple vulnerabilities in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain elevated privileges. These vulnerabilities are due to improper access controls on commands within the application CLI. An a…
CVE-2022-20728Medium· 4.7Cisco Aironet Access Points VLAN bypass from Native VLAN Vulnerability
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 v…
CVE-2022-20768Medium· 4.9Cisco TelePresence Collaboration Endpoint and RoomOS Software Information Disclosure Vulnerability (CVE-2022-20768)
A vulnerability in the logging component of Cisco TelePresence Collaboration Endpoint (CE) and RoomOS Software could allow an authenticated, remote attacker to view sensitive information in clear text on an affected system. This vulnera…