What is GHSA-6cm4-q5j4-r599?

GHSA-6cm4-q5j4-r599 is a security advisory published by GitHub Security Advisories with High severity. Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an...

Which CVE IDs does GHSA-6cm4-q5j4-r599 cover?

GHSA-6cm4-q5j4-r599 covers the following CVE IDs: CVE-2026-65807. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-6cm4-q5j4-r599?

GHSA-6cm4-q5j4-r599 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-6cm4-q5j4-r599HighCVSS 8.8

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an...

Vendor

GitHub Security Advisories

Published

August 11, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-65807 →

📋 Description

Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-65807
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65807
https://github.com/advisories/GHSA-6cm4-q5j4-r599