CVE-2026-76463 Cisco Meraki Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities
Attackers can bypass access controls on Cisco Meraki devices due to improper authorization checks, potentially gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-76463?
CVE-2026-76463 is a high-severity missing authorization vulnerability in Cisco Campus Gateway Software, published on 7 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking 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-2026-76463 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.
Weakness: CWE-284
Which versions are affected by CVE-2026-76463?
How do I fix CVE-2026-76463?
No fix has been published for CVE-2026-76463 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-2026-76463 being exploited?
There is no known exploitation of CVE-2026-76463 in the wild and no public exploit code.
Sources
Also known as GHSA-jfm4-3jqp-3352.