CVE-2026-76463: Cisco Campus Gateway Software

High severity, CVSS 8.8. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Cisco Cisco Campus Gateway Software
• Cisco Cisco Meraki Mr Wireless Access Points Software
• Cisco Cisco Meraki Mv Firmware: version 4.20 only; version 5.0 only; version 5.1 only; version 5.2 only; version 5.3 only; version 5.4 only; …
• Cisco Cisco Meraki Mx Firmware: version 16.2 only; version 16.3 only; version 16.4 only; version 16.5 only; version 16.6 only; version 17.3 only; …

Published 2026-10-07. Last modified 2026-10-08.