What is GHSA-w55m-537w-hc8q?

GHSA-w55m-537w-hc8q is a security advisory published by GitHub Security Advisories with High severity. As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS...

Which CVE IDs does GHSA-w55m-537w-hc8q cover?

GHSA-w55m-537w-hc8q covers the following CVE IDs: CVE-2026-76456. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-w55m-537w-hc8q?

GHSA-w55m-537w-hc8q has a CVSS v3 base score of 8.6, published by GitHub Security Advisories.

GHSA-w55m-537w-hc8qHighCVSS 8.6

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS...

Vendor

GitHub Security Advisories

Published

October 7, 2026

Last Modified

October 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-76456 →

📋 Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS 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-2026-76456 are related to improper input validation of special elements used in a command issue that are grouped under the Common Weakness Enumeration (CWE) CWE-20.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-76456
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR
https://github.com/advisories/GHSA-w55m-537w-hc8q