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Cisco: known exploited vulnerabilities

Entries100No. 2
Ransomware-linked7
Products43
Latest2026-09-30

Added per year

years2021: 1120212022: 5020222023: 720232024: 620242025: 820252026: 182026

By product

Entries

CVEVendor / productAddedEPSSRansomware
CVE-2026-76504Cisco Catalyst SD-WAN Manager2026-09-301.8%Unknown
CVE-2026-76460Cisco Identity Services Engine2026-09-1614.0%Unknown
CVE-2026-76461Cisco Secure Email Gateway2026-09-1428.2%Unknown
CVE-2026-20079Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management2026-09-0988.1%Unknown
CVE-2026-20349Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) 2026-08-111.0%Unknown
CVE-2026-20316Cisco Secure Firewall Management Center (FMC)2026-07-2935.0%Known
CVE-2008-4128Cisco IOS2026-07-1333.8%Unknown
CVE-2026-20230Cisco Unified Communications Manager2026-06-2588.2%Unknown
CVE-2026-20262Cisco Catalyst SD-WAN Manager2026-06-1528.1%Unknown
CVE-2026-20245Cisco Catalyst SD-WAN Manager2026-06-0925.3%Unknown
CVE-2026-20182Cisco Catalyst SD-WAN2026-05-1491.5%Unknown
CVE-2026-20133Cisco Catalyst SD-WAN Manager2026-04-2031.8%Unknown
CVE-2026-20128Cisco Catalyst SD-WAN Manager2026-04-207.0%Unknown
CVE-2026-20122Cisco Catalyst SD-WAN Manger2026-04-2024.9%Unknown
CVE-2026-20131Cisco Secure Firewall Management Center (FMC)2026-03-1943.1%Known
CVE-2026-20127Cisco Catalyst SD-WAN Controller and Manager2026-02-2588.4%Unknown
CVE-2022-20775Cisco SD-WAN2026-02-2512.4%Unknown
CVE-2026-20045Cisco Unified Communications Manager2026-01-214.5%Unknown
CVE-2025-20393Cisco Multiple Products2025-12-1732.3%Unknown
CVE-2025-20352Cisco IOS and IOS XE2025-09-2939.4%Unknown
CVE-2025-20362Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense2025-09-2587.0%Unknown
CVE-2025-20333Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense2025-09-2570.6%Unknown
CVE-2025-20337Cisco Identity Services Engine2025-07-2867.9%Unknown
CVE-2025-20281Cisco Identity Services Engine2025-07-2897.6%Unknown
CVE-2024-20439Cisco Smart Licensing Utility2025-03-3197.0%Unknown
CVE-2023-20118Cisco Small Business RV Series Routers2025-03-0354.1%Unknown
CVE-2014-2120Cisco Adaptive Security Appliance (ASA)2024-11-1222.5%Unknown
CVE-2024-20481Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)2024-10-2415.8%Unknown
CVE-2024-20399Cisco NX-OS2024-07-024.3%Unknown
CVE-2024-20359Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)2024-04-2419.4%Unknown
CVE-2024-20353Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)2024-04-2470.6%Unknown
CVE-2020-3259Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)2024-02-1571.7%Known
CVE-2023-20273Cisco Cisco IOS XE Web UI2023-10-2389.6%Unknown
CVE-2023-20198Cisco IOS XE Web UI2023-10-1699.5%Unknown
CVE-2023-20109Cisco IOS and IOS XE2023-10-102.4%Unknown
CVE-2023-20269Cisco Adaptive Security Appliance and Firepower Threat Defense2023-09-1325.4%Known
CVE-2016-6415Cisco IOS, IOS XR, and IOS XE2023-05-1987.6%Unknown
CVE-2004-1464Cisco IOS2023-05-194.8%Unknown
CVE-2017-6742Cisco IOS and IOS XE Software2023-04-1921.4%Unknown
CVE-2020-3433Cisco AnyConnect Secure2022-10-2410.0%Known
CVE-2020-3153Cisco AnyConnect Secure2022-10-2428.3%Known
CVE-2019-15271Cisco RV Series Routers2022-06-085.4%Unknown
CVE-2016-6367Cisco Adaptive Security Appliance (ASA)2022-05-2422.5%Unknown
CVE-2016-6366Cisco Adaptive Security Appliance (ASA)2022-05-2487.5%Unknown
CVE-2022-20821Cisco IOS XR2022-05-2311.4%Unknown
CVE-2018-0147Cisco Secure Access Control System (ACS)2022-03-2518.2%Unknown
CVE-2018-0125Cisco VPN Routers2022-03-2555.1%Unknown
CVE-2017-3881Cisco IOS and IOS XE2022-03-2598.9%Unknown
CVE-2015-0666Cisco Prime Data Center Network Manager (DCNM)2022-03-2540.3%Unknown
CVE-2010-3035Cisco IOS XR2022-03-255.6%Unknown
CVE-2009-2055Cisco IOS XR2022-03-253.3%Unknown
CVE-2022-20708Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers2022-03-0314.8%Unknown
CVE-2022-20703Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers2022-03-039.2%Unknown
CVE-2022-20701Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers2022-03-039.7%Unknown
CVE-2022-20700Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers2022-03-035.6%Unknown
CVE-2022-20699Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers2022-03-0372.4%Unknown
CVE-2019-1652Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers2022-03-0395.9%Unknown
CVE-2018-0180Cisco IOS Software2022-03-034.9%Unknown
CVE-2018-0179Cisco IOS Software2022-03-034.9%Unknown
CVE-2018-0175Cisco IOS, XR, and XE Software2022-03-033.4%Unknown
CVE-2018-0174Cisco IOS XE Software2022-03-037.6%Unknown
CVE-2018-0173Cisco IOS and IOS XE Software2022-03-037.6%Unknown
CVE-2018-0172Cisco IOS and IOS XE Software2022-03-037.8%Unknown
CVE-2018-0167Cisco IOS, XR, and XE Software2022-03-033.3%Unknown
CVE-2018-0161Cisco IOS Software2022-03-034.1%Unknown
CVE-2018-0159Cisco IOS Software and Cisco IOS XE Software2022-03-036.8%Unknown
CVE-2018-0158Cisco IOS Software and Cisco IOS XE Software2022-03-037.1%Unknown
CVE-2018-0156Cisco IOS Software and Cisco IOS XE Software2022-03-039.3%Unknown
CVE-2018-0155Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches2022-03-037.7%Unknown
CVE-2018-0154Cisco IOS Software2022-03-037.0%Unknown
CVE-2018-0151Cisco IOS and IOS XE Software2022-03-0314.1%Unknown
CVE-2017-6744Cisco IOS software2022-03-037.2%Unknown
CVE-2017-6743Cisco IOS and IOS XE Software2022-03-0310.8%Unknown
CVE-2017-6740Cisco IOS and IOS XE Software2022-03-0311.1%Unknown
CVE-2017-6739Cisco IOS and IOS XE Software2022-03-0310.8%Unknown
CVE-2017-6738Cisco IOS and IOS XE Software2022-03-0310.8%Unknown
CVE-2017-6737Cisco IOS and IOS XE Software2022-03-0345.2%Unknown
CVE-2017-6736Cisco IOS and IOS XE Software2022-03-0370.3%Unknown
CVE-2017-6663Cisco IOS and IOS XE Software2022-03-032.1%Unknown
CVE-2017-6627Cisco IOS and IOS XE Software2022-03-036.1%Unknown
CVE-2017-12319Cisco IOS XE Software2022-03-035.2%Unknown
CVE-2017-12240Cisco IOS and IOS XE Software2022-03-0313.7%Unknown
CVE-2017-12238Cisco Catalyst 6800 Series Switches2022-03-032.0%Unknown
CVE-2017-12237Cisco IOS and IOS XE Software2022-03-037.0%Unknown
CVE-2017-12235Cisco IOS software2022-03-037.0%Unknown
CVE-2017-12234Cisco IOS software2022-03-037.0%Unknown
CVE-2017-12233Cisco IOS software2022-03-037.0%Unknown
CVE-2017-12232Cisco IOS software2022-03-032.1%Unknown
CVE-2017-12231Cisco IOS software2022-03-037.0%Unknown
CVE-2021-1498Cisco HyperFlex HX2021-11-0399.9%Unknown
CVE-2021-1497Cisco HyperFlex HX2021-11-0399.9%Unknown
CVE-2020-3580Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)2021-11-0385.5%Known
CVE-2020-3569Cisco IOS XR2021-11-033.3%Unknown
CVE-2020-3566Cisco IOS XR2021-11-033.7%Unknown
CVE-2020-3452Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)2021-11-0399.9%Unknown
CVE-2020-3161Cisco Cisco IP Phones2021-11-0383.8%Unknown
CVE-2020-3118Cisco IOS XR2021-11-0311.6%Unknown
CVE-2019-1653Cisco Small Business RV320 and RV325 Routers2021-11-0399.8%Unknown
CVE-2018-0296Cisco Adaptive Security Appliance (ASA)2021-11-0399.9%Unknown
CVE-2018-0171Cisco IOS and IOS XE2021-11-0399.4%Unknown
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

CISA KEV lists 100 Cisco vulnerabilities (No. 2 of 288 vendors).