What is GHSA-m7hf-cqqm-r9c3?

GHSA-m7hf-cqqm-r9c3 is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to...

Which CVE IDs does GHSA-m7hf-cqqm-r9c3 cover?

GHSA-m7hf-cqqm-r9c3 covers the following CVE IDs: CVE-2026-70289. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m7hf-cqqm-r9c3?

GHSA-m7hf-cqqm-r9c3 has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-m7hf-cqqm-r9c3HighCVSS 7.8

Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to...

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-70289 →

📋 Description

Heap-based buffer overflow in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-70289
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70289
https://github.com/advisories/GHSA-m7hf-cqqm-r9c3