What is GHSA-3rq5-w539-p23v?

GHSA-3rq5-w539-p23v is a security advisory published by GitHub Security Advisories with High severity. Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate...

Which CVE IDs does GHSA-3rq5-w539-p23v cover?

GHSA-3rq5-w539-p23v covers the following CVE IDs: CVE-2026-85858. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-3rq5-w539-p23v?

GHSA-3rq5-w539-p23v has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-3rq5-w539-p23vHighCVSS 7.8

Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-85858 →

📋 Description

Out-of-bounds read in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-85858
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85858
https://github.com/advisories/GHSA-3rq5-w539-p23v