CVE-2026-20326 Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Missing Authentication for Critical Function
Attackers can access critical functions without authentication in Cisco Nexus Dashboard, bypassing security controls.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20326?
CVE-2026-20326 is a critical missing authorization vulnerability in Cisco Nexus Dashboard, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Nexus Dashboard 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-2026-20326 are related to missing authentication for critical function issues that are grouped under the Common Weakness Enumeration (CWE) CWE-306.
Weakness: CWE-306
Which versions are affected by CVE-2026-20326?
How do I fix CVE-2026-20326?
No fix has been published for CVE-2026-20326 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-2026-20326 being exploited?
There is no known exploitation of CVE-2026-20326 in the wild and no public exploit code.
Sources
Also known as GHSA-7m45-wvmr-jx5q.