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9.9

Cisco firewall and management software may allow unauthorized access

CVE-2026-20332 · published 26 days ago
Summary

Cisco's Secure Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center can incorrectly restrict who can use certain functions. This could let an attacker perform actions they should not be able to, potentially compromising network security. Apply the latest software update from Cisco as soon as possible to fix the access control issues.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
cisco cisco secure firewall adaptive security appliance (asa) software 9.16.1
cisco cisco secure firewall management center (fmc) 7.0.0
cisco cisco secure firewall threat defense (ftd) software 7.0.0.1
Original advisory text
Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software and Secure Firewall Management Center Software Hardening Release - Improper Access Control Vulnerabilities
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-2026-20332 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.
References
Fix within
Internet-facing 14 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker full control
Severity
9.9 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-284Improper Access Control
Timeline
Published16 Sep 2026
Updated12 Oct 2026
First seen16 Sep 2026
Sources
CVE-2026-20332 · NVD
CVE-2026-20332 · MITRE
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