CVE-2026-76463: Improper Access Control in Cisco Cisco Campus Gateway Software
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.
CVSS v3.1
Score 8.8high
Affected software
Cisco
Cisco Campus Gateway Software
Cisco
Cisco Meraki MR Wireless Access Points Software
Cisco
Cisco Meraki MV Firmware
Cisco
Cisco Meraki MX Firmware
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76463 concerns improper access control vulnerabilities in Cisco Campus Gateway Software identified during Cisco's internal security review. These issues fall under CWE-284 and affect a wide range of specific software versions. The vulnerability has a CVSS 3.1 score of 8.8 with attack vector as adjacent network, low attack complexity, no privileges required, no user interaction, and scope changed. The impact includes high confidentiality loss, low integrity loss, and low availability loss. No public exploits are known. Cisco has issued a software hardening release to remediate these vulnerabilities.
Potential Impact
The vulnerability allows unauthorized access due to improper access control, potentially leading to significant confidentiality compromise, some integrity impact, and availability disruption. The CVSS score of 8.8 reflects a high severity level with a changed scope, indicating that the vulnerability may affect resources beyond the initially vulnerable component.
Mitigation Recommendations
Cisco has released a software hardening update that addresses the vulnerabilities identified by CVE-2026-76463. Users should apply the official Cisco software updates corresponding to their affected versions to remediate these issues. Since this is not a cloud service, remediation requires manual patching. No known exploits are currently reported in the wild.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisco
- Date Reserved
- 2026-08-19T12:02:03.637Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac6748a2cdf04f65664732e
Added to database: 10/07/2026, 16:34:18 UTC
Last enriched: 10/07/2026, 16:51:13 UTC
Last updated: 10/08/2026, 05:48:07 UTC
Views: 10
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