What is GHSA-hg8g-x2hc-5wrq?

GHSA-hg8g-x2hc-5wrq 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 elevate privileges...

Which CVE IDs does GHSA-hg8g-x2hc-5wrq cover?

GHSA-hg8g-x2hc-5wrq covers the following CVE IDs: CVE-2026-108399. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-hg8g-x2hc-5wrq?

GHSA-hg8g-x2hc-5wrq has a CVSS v3 base score of 7.2, published by GitHub Security Advisories.

GHSA-hg8g-x2hc-5wrqHighCVSS 7.2

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to elevate privileges...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-108399 →

📋 Description

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

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-108399
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108399
https://github.com/advisories/GHSA-hg8g-x2hc-5wrq