CS
Product
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
by Cisco · last CVE Sep 16, 2026
On CISA KEVExploited in the wild
18
CVEs
3
On KEV
9.9
Max CVSS
0
New 30D
Severity mix
Critical 5High 10Medium 3Low 0
Watch

Add Cisco Secure Firewall Adaptive Security Appliance (ASA) Software to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-20349
In wildKEV
8.6
1%
Aug 11
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2025-20362
In wildKEV
8.6
87%
Sep 25
Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability
Affected: 9.8.1; 9.8.1.5; 9.8.1.7; 9.8.2; 9.8.2.8; 9.8.2.14; +34 more
CVE-2026-20333
8.8
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Comparison Vulnerabilities
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2026-20336
8.8
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Resource Lifetime Management Vulnerabilities
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2026-20154
8.6
1%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software Logging Denial of Service
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2026-20249
8.6
0%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software IKEv2 Certificate Authentication Denial of Service Vulnerability
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2026-20250
8.6
1%
Sep 16
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series DTLS Denial of Service Vulnerability
Affected: 9.23.1; 9.22.1.1; 9.22.1.3; 9.22.1.6; 9.22.2; 9.23.1.3; +11 more
CVE-2026-20334
8.4
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Coding Standards Vulnerabilities
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2026-20335
8.1
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Incorrect Calculation Vulnerabilities
Affected: 9.16.1; 9.16.1.28; 9.16.2; 9.16.2.3; 9.16.2.7; 9.16.2.11; +34 more
CVE-2026-20222
7.4
0%
Sep 16
Cisco Secure Adaptive Security Appliance Software and Secure Firewall Threat Defense Software EIGRP Denial of Service Vulnerability
Affected: 9.19.1; 9.19.1.5; 9.19.1.9; 9.19.1.12; 9.19.1.18; 9.20.1; +34 more
Showing 10