What is GHSA-86jj-hqjw-mj6h?

GHSA-86jj-hqjw-mj6h is a security advisory published by GitHub Security Advisories with High severity. Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

Which CVE IDs does GHSA-86jj-hqjw-mj6h cover?

GHSA-86jj-hqjw-mj6h covers the following CVE IDs: CVE-2026-54127. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-86jj-hqjw-mj6h?

GHSA-86jj-hqjw-mj6h has a CVSS v3 base score of 7.4, published by GitHub Security Advisories.

GHSA-86jj-hqjw-mj6hHighCVSS 7.4

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-54127 →

📋 Description

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-54127
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54127
https://github.com/advisories/GHSA-86jj-hqjw-mj6h