CVE-2026-20332 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software
Cisco firewall software contains improper access control flaws allowing unauthorized actions, requiring a security hardening patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20332?
CVE-2026-20332 is a critical missing authorization vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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-2026-20332 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.
Weakness: CWE-284
Which versions are affected by CVE-2026-20332?
How do I fix CVE-2026-20332?
No fix has been published for CVE-2026-20332 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-20332 being exploited?
There is no known exploitation of CVE-2026-20332 in the wild and no public exploit code.
Sources
Also known as GHSA-4jm7-46ch-h63w.