What is GHSA-rcwh-4x4r-ph63?

GHSA-rcwh-4x4r-ph63 is a security advisory published by GitHub Security Advisories with High severity. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a...

Which CVE IDs does GHSA-rcwh-4x4r-ph63 cover?

GHSA-rcwh-4x4r-ph63 covers the following CVE IDs: CVE-2026-100211. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rcwh-4x4r-ph63?

GHSA-rcwh-4x4r-ph63 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-rcwh-4x4r-ph63HighCVSS 8.8

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-100211 →

📋 Description

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-100211
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100211
https://github.com/advisories/GHSA-rcwh-4x4r-ph63