Cisco known exploited vulnerabilities
Every Cisco CVE on CISA's Known Exploited Vulnerabilities catalog, newest addition first: 102 in all, 21 added in the last 12 months.
- CVE-2017-12231A vulnerability in the implementation of Network Address Translation (NAT) functionality in Cisco IOS 12.4 through 15.6 could allow an unautCisco IOS
- CVE-2021-1498Cisco HyperFlex HX Command Injection VulnerabilitiesCisco HyperFlex HX Data Platform
- CVE-2021-1497Cisco HyperFlex HX Command Injection VulnerabilitiesCisco HyperFlex HX Data Platform
- CVE-2020-3580Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting VulnerabilitiesCisco Adaptive Security Appliance (ASA) Software
- CVE-2020-3569Cisco IOS XR Software DVMRP Memory Exhaustion VulnerabilitiesCisco IOS XR Software
- CVE-2020-3566Cisco IOS XR Software DVMRP Memory Exhaustion VulnerabilityCisco IOS XR Software
- CVE-2020-3452Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal VulnerabilityCisco Adaptive Security Appliance (ASA) Software
- CVE-2020-3161Cisco IP Phones Web Server Remote Code Execution and Denial of Service VulnerabilityCisco IP phone
- CVE-2020-3118Cisco IOS XR Software Cisco Discovery Protocol Format String VulnerabilityCisco IOS XR Software
- CVE-2019-1653Cisco Small Business RV320 and RV325 Routers Information Disclosure VulnerabilityCisco Small Business RV Series Router Firmware
- CVE-2018-0296A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to causeCisco Adaptive Security Appliance unknown
- CVE-2018-0171A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attackerCisco IOS and IOS XE
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Frequently asked questions
How many Cisco vulnerabilities are in CISA KEV?
102 Cisco vulnerabilities are on CISA's Known Exploited Vulnerabilities catalog, 21 of them added in the last 12 months. The newest is CVE-2026-76418 (Cisco Secure Firewall ASA Software and Cisco Secure FTD Software Unchecked Return Value to NULL Pointer Dereference Vulnerability), added 2026-10-29.
Which Cisco products are in CISA KEV?
44 products, including Secure Firewall ASA Software and Cisco Secure FTD Software, Secure Email Gateway, Catalyst SD-WAN Manager. Attackers have exploited every one of these entries in the wild, and US federal agencies must patch each by its CISA due date.
Are Cisco KEV vulnerabilities used by ransomware?
CISA knows ransomware campaigns exploit 7 of the 102 Cisco entries.