What is GHSA-7mv3-4x8j-4pgx?

GHSA-7mv3-4x8j-4pgx is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker...

Which CVE IDs does GHSA-7mv3-4x8j-4pgx cover?

GHSA-7mv3-4x8j-4pgx covers the following CVE IDs: CVE-2026-56189. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-7mv3-4x8j-4pgx?

GHSA-7mv3-4x8j-4pgx has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-7mv3-4x8j-4pgxHighCVSS 7.8

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-56189 →

📋 Description

Heap-based buffer overflow in Microsoft Windows Media Foundation allows an unauthorized attacker to execute code locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-56189
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56189
https://github.com/advisories/GHSA-7mv3-4x8j-4pgx