What is GHSA-mcm8-2vx8-c98r?

GHSA-mcm8-2vx8-c98r is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate...

Which CVE IDs does GHSA-mcm8-2vx8-c98r cover?

GHSA-mcm8-2vx8-c98r covers the following CVE IDs: CVE-2026-65774. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mcm8-2vx8-c98r?

GHSA-mcm8-2vx8-c98r has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-mcm8-2vx8-c98rHighCVSS 7.8

Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate...

Vendor

GitHub Security Advisories

Published

August 11, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-65774 →

📋 Description

Heap-based buffer overflow in Windows Installer allows an authorized attacker to elevate privileges locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-65774
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65774
https://github.com/advisories/GHSA-mcm8-2vx8-c98r