CRITICAL 9.6 NVD

CVE-2026-20331

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Adaptive Security Appliance Software, Cisco Secure Firewall Th

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.

References

Published: 2026-09-16 · Source: NVD · Feed updated: 2026-09-16
This critical severity vulnerability with a CVSS score of 9.6 was published on 2026-09-16 via NVD.

Risk Timeline

CVE Disclosed2026-09-16 · -1 days ago

Remediation Resources

Official Advisory
sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/
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