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CVE-2026-20331

Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Protection Mechanism Failure Vulnerabilities PUBLISHED

Description (CNA)

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Threat Defense Software and Cisco Secure Firewall Management Center Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.   The vulnerabilities tracked by CVE-2026-20331 are related to the failure of protection mechanisms issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-693.

Affected (CNA)

Vendor / productVersions
Cisco / Cisco Secure Firewall Adaptive Security Appliance (ASA) Softwareaffected 9.16.1; affected 9.16.1.28; affected 9.16.2; affected 9.16.2.3; affected 9.16.2.7; affected 9.16.2.11; affected 9.16.2.13; affected 9.16.2.14; affected 9.16.3.3; affected 9.16.3; affected 9.16.3.14; affected 9.16.3.15; affected 9.18.1.3; affected 9.18.2; affected 9.16.3.19; affected 9.16.3.23; affected 9.18.2.5; affected 9.16.4; affected 9.18.2.7; affected 9.16.4.9; affected 9.18.2.8; affected 9.16.4.14; affected 9.18.3; affected 9.16.4.18; affected 9.18.3.39; affected 9.16.4.19; affected 9.18.3.46; affected 9.16.4.27; affected 9.18.3.53; affected 9.18.3.55; affected 9.16.4.38; affected 9.16.4.39; affected 9.18.3.56; affected 9.20.1; affected 9.16.4.42; affected 9.18.4; affected 9.20.1.5; affected 9.18.4.5; affected 9.16.4.48; affected 9.18.4.8; affected 9.20.2; affected 9.16.4.55; affected 9.18.4.22; affected 9.20.2.10; affected 9.16.4.57; affected 9.18.4.24; affected 9.20.2.21; affected 9.16.4.61; affected 9.18.4.29; affected 9.20.2.22; affected 9.16.4.62; affected 9.18.4.34; affected 9.20.3; affected 9.16.4.67; affected 9.16.4.70; affected 9.18.4.40; affected 9.23.1; affected 9.22.1.1; affected 9.16.4.71; affected 9.20.3.4; affected 9.18.4.47; affected 9.20.3.7; affected 9.16.4.76; affected 9.20.3.9; affected 9.18.4.50; affected 9.22.1.3; affected 9.20.3.10; affected 9.22.1.2; affected 9.18.4.52; affected 9.20.3.13; affected 9.22.1.6; affected 9.18.4.53; affected 9.16.4.82; affected 9.22.2; affected 9.20.3.16; affected 9.19.1.42; affected 9.18.4.57; affected 9.16.4.84; affected 9.23.1.3; affected 9.20.3.20; affected 9.22.2.4; affected 9.23.1.7; affected 9.20.4; affected 9.22.2.9; affected 9.23.1.13; affected 9.20.4.7; affected 9.22.2.13; affected 9.18.4.66; affected 9.20.4.10; affected 9.23.1.19; affected 9.16.4.85; affected 9.22.2.14; affected 9.18.4.67; affected 9.24.1; affected 9.18.4.68; affected 9.23.1.22; affected 9.20.4.14; affected 9.22.2.20; affected 9.18.4.71; affected 9.20.4.19; affected 9.23.1.26; affected 9.16.4.89; affected 9.22.2.32; affected 9.18.4.76; affected 9.22.3; affected 9.24.1.5; affected 9.20.4.22; affected 9.24.1.9; affected 9.20.4.28; affected 9.22.3.5; affected 9.16.4.92; affected 9.18.4.135; affected 9.23.1.195; affected 9.20.4.30; affected 9.24.1.155; affected 9.23.1.32; affected 9.24.1.11; affected 9.20.4.34; affected 9.18.4.82; affected 9.24.10; affected 9.20.4.235
Cisco / Cisco Secure Firewall Management Center (FMC)affected 7.0.0; affected 7.0.0.1; affected 7.0.1; affected 7.0.1.1; affected 7.0.2; affected 7.2.0; affected 7.0.2.1; affected 7.0.3; affected 7.2.0.1; affected 7.0.4; affected 7.2.1; affected 7.0.5; affected 7.3.0; affected 7.2.2; affected 7.3.1; affected 7.2.3; affected 7.2.3.1; affected 7.2.4; affected 7.0.6; affected 7.2.4.1; affected 7.2.5; affected 7.3.1.1; affected 7.4.0; affected 7.0.6.1; affected 7.2.5.1; affected 7.4.1; affected 7.2.6; affected 7.4.1.1; affected 7.0.6.2; affected 7.2.7; affected 7.2.5.2; affected 7.3.1.2; affected 7.2.8; affected 7.6.0; affected 7.4.2; affected 7.2.8.1; affected 7.0.6.3; affected 7.4.2.1; affected 7.2.9; affected 7.0.7; affected 7.7.0; affected 7.4.2.2; affected 7.2.10; affected 7.6.1; affected 7.4.2.3; affected 7.0.8; affected 7.6.2; affected 7.7.10; affected 7.2.10.1; affected 7.0.8.1; affected 7.6.2.1; affected 7.2.10.2; affected 7.7.10.1; affected 7.4.2.4; affected 7.4.3; affected 7.6.3; affected 7.7.11; affected 7.6.4; affected 10.0.0; affected 7.4.4; affected 7.4.5; affected 7.0.9; affected 7.2.11; affected 7.7.12; affected 7.6.5; affected 7.4.6; affected 10.0.1; affected 7.4.7
Cisco / Cisco Secure Firewall Threat Defense (FTD) Softwareaffected 7.0.0.1; affected 7.0.1; affected 7.0.1.1; affected 7.0.2; affected 7.0.2.1; affected 7.0.3; affected 7.0.4; affected 7.0.5; affected 7.3.0; affected 7.3.1; affected 7.0.6; affected 7.3.1.1; affected 7.4.0; affected 7.0.6.1; affected 7.4.1; affected 7.0.6.2; affected 7.4.1.1; affected 7.3.1.2; affected 7.6.0; affected 7.4.2; affected 7.0.6.3; affected 7.4.2.1; affected 7.0.7; affected 7.7.0; affected 7.4.2.2; affected 7.6.1; affected 7.4.2.3; affected 7.0.8; affected 7.6.2; affected 7.7.10; affected 7.7.11; affected 7.0.8.1; affected 7.6.2.1; affected 7.7.10.1; affected 7.4.2.4; affected 7.4.3; affected 7.6.4; affected 10.0.0; affected 7.4.4; affected 7.0.9; affected 7.4.7

CWE

CWE-693

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.