cisco
348 known vulnerabilities affecting cisco products.
Products
secure_firewall_threat_defense 274
adaptive_security_appliance_software 151
asa_5525-x 41
asa_5555-x 41
asa_5580 39
asa_5512-x 39
asa_5515-x 39
asa_5505 38
asa_5585-x 37
asa_5545-x 33
asa_5550 28
asa_5510 28
secure_firewall_management_center 28
adaptive_security_appliance 27
asa_5520 27
asa_5545-x_firmware 22
asa_5555-x_firmware 22
asa_5580_firmware 22
asa_5505_firmware 22
asa_5515-x_firmware 22
asa_5512-x_firmware 22
asa_5525-x_firmware 22
ios_xe 22
asa_5585-x_firmware 21
Vulnerabilities by priority
| CVE | Priority | EPSS | CVSS | KEV | What |
|---|---|---|---|---|---|
| CVE-2026-20039 | Medium | 0.4% | 8.6 | A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security… | |
| CVE-2026-20012 | Medium | 0.4% | 8.6 | A vulnerability in the Internet Key Exchange version 2 (IKEv2) feature of Cisco … | |
| CVE-2026-20101 | Medium | 0.4% | 8.6 | A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Fir… | |
| CVE-2026-20124 | Medium | 0.4% | 7.7 | A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Ci… | |
| CVE-2026-20103 | Medium | 0.4% | 8.6 | A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firew… | |
| CVE-2026-20002 | Medium | 0.3% | 8.1 | A vulnerability in the web-based management interface of Cisco Secure FMC Softwa… | |
| CVE-2026-76389 | Medium | 0.3% | 8.8 | In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, … | |
| CVE-2026-20301 | Medium | 0.3% | 8.6 | A vulnerability in the Extensible Messaging Client Protocol (XMCP), also referre… | |
| CVE-2026-20105 | Medium | 0.3% | 7.7 | A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firew… | |
| CVE-2021-1448 | Medium | 0.3% | 7.8 | A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software coul… | |
| CVE-2026-20049 | Medium | 0.3% | 7.7 | A vulnerability in the processing of Galois/Counter Mode (GCM)-encrypted Interne… | |
| CVE-2026-20280 | Medium | 0.3% | 8.8 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20014 | Medium | 0.3% | 7.7 | A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and C… | |
| CVE-2026-20268 | Medium | 0.3% | 8.6 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20269 | Medium | 0.3% | 8.6 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20270 | Medium | 0.3% | 8.6 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20100 | Medium | 0.3% | 7.7 | A vulnerability in the LUA interperter of the Remote Access SSL VPN feature of C… | |
| CVE-2026-20271 | Medium | 0.3% | 8.6 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20273 | Medium | 0.3% | 8.6 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20276 | Medium | 0.3% | 8.6 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20267 | Medium | 0.3% | 9.0 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2026-20156 | Medium | 0.3% | 8.1 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2024-20412 | Medium | 0.2% | 9.3 | A vulnerability in Cisco Firepower Threat Defense (FTD) Software for Cisco Firep… | |
| CVE-2025-20311 | Medium | 0.2% | 7.4 | A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Softw… | |
| CVE-2026-20157 | Medium | 0.1% | 7.5 | As part of Cisco's ongoing commitment to proactive security and product quality,… | |
| CVE-2019-1978 | Low | 9.4% | 5.8 | A vulnerability in the stream reassembly component of Cisco Firepower Threat Def… | |
| CVE-2021-40114 | Low | 2.4% | 6.8 | Multiple Cisco products are affected by a vulnerability in the way the Snort det… | |
| CVE-2020-3299 | Low | 2.3% | 5.8 | Multiple Cisco products are affected by a vulnerability in the Snort detection e… | |
| CVE-2019-1691 | Low | 2.3% | 5.8 | A vulnerability in the detection engine of Cisco Firepower Threat Defense Softwa… | |
| CVE-2020-3315 | Low | 2.2% | 5.3 | Multiple Cisco products are affected by a vulnerability in the Snort detection e… | |
| CVE-2021-1236 | Low | 2.1% | 5.3 | Multiple Cisco products are affected by a vulnerability in the Snort application… | |
| CVE-2019-1693 | Low | 2.0% | 6.5 | A vulnerability in the WebVPN service of Cisco Adaptive Security Appliance (ASA)… | |
| CVE-2019-1697 | Low | 2.0% | 6.8 | A vulnerability in the implementation of the Lightweight Directory Access Protoc… | |
| CVE-2021-1224 | Low | 2.0% | 5.8 | Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO)… | |
| CVE-2019-1961 | Low | 1.9% | 4.9 | A vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS) could al… | |
| CVE-2018-15398 | Low | 1.9% | 4.0 | A vulnerability in the per-user-override feature of Cisco Adaptive Security Appl… | |
| CVE-2019-12700 | Low | 1.9% | 6.5 | A vulnerability in the configuration of the Pluggable Authentication Module (PAM… | |
| CVE-2018-15399 | Low | 1.8% | 6.8 | A vulnerability in the TCP syslog module of Cisco Adaptive Security Appliance (A… | |
| CVE-2021-1495 | Low | 1.7% | 5.8 | Multiple Cisco products are affected by a vulnerability in the Snort detection e… | |
| CVE-2019-1715 | Low | 1.7% | 5.3 | A vulnerability in the Deterministic Random Bit Generator (DRBG), also known as … | |
| CVE-2022-20713 | Low | 1.7% | 4.3 | A vulnerability in the VPN web client services component of Cisco Adaptive Secur… | |
| CVE-2020-3555 | Low | 1.7% | 6.8 | A vulnerability in the SIP inspection process of Cisco Adaptive Security Applian… | |
| CVE-2020-3188 | Low | 1.7% | 5.3 | A vulnerability in how Cisco Firepower Threat Defense (FTD) Software handles ses… | |
| CVE-2020-3365 | Low | 1.6% | 4.3 | A vulnerability in the directory permissions of Cisco Enterprise NFV Infrastruct… | |
| CVE-2019-1970 | Low | 1.5% | 5.8 | A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS)… | |
| CVE-2019-1953 | Low | 1.5% | 6.5 | A vulnerability in the web portal of Cisco Enterprise NFV Infrastructure Softwar… | |
| CVE-2017-3822 | Low | 1.5% | 5.3 | A vulnerability in the logging subsystem of the Cisco Firepower Threat Defense (… | |
| CVE-2019-1946 | Low | 1.4% | 6.5 | A vulnerability in the web-based management interface of Cisco Enterprise NFV In… | |
| CVE-2020-3285 | Low | 1.4% | 5.8 | A vulnerability in the Transport Layer Security version 1.3 (TLS 1.3) policy wit… | |
| CVE-2020-3186 | Low | 1.3% | 5.3 | A vulnerability in the management access list configuration of Cisco Firepower T… |