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CVE-2026-20331

9.6 CRITICAL

Published 2026-09-16 · Updated 2026-09-18

AI risk analysis

Summary
CVE-2026-20331 involves a failure in protection mechanisms that could lead to significant security risks, including data compromise and system integrity issues.
Exploitability
Exploitation requires specific internal conditions but is considered critical due to the high severity level.
Blast radius
If exploited, this vulnerability could result in widespread data loss and system instability across affected devices.
Prioritized remediation
Apply the latest software hardening release provided by Cisco immediately.
vulnerabilitysecuritycwe-693criticalsoftware-update

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

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.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

Weaknesses

CWE-693

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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