What is GHSA-cq44-5v37-c39f?

GHSA-cq44-5v37-c39f is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

Which CVE IDs does GHSA-cq44-5v37-c39f cover?

GHSA-cq44-5v37-c39f covers the following CVE IDs: CVE-2026-69603. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cq44-5v37-c39f?

GHSA-cq44-5v37-c39f has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-cq44-5v37-c39fHighCVSS 8.8

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-69603 →

📋 Description

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-69603
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69603
https://github.com/advisories/GHSA-cq44-5v37-c39f