What is GHSA-5c99-j5fv-r62h?

GHSA-5c99-j5fv-r62h is a security advisory published by GitHub Security Advisories with High severity. Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to...

Which CVE IDs does GHSA-5c99-j5fv-r62h cover?

GHSA-5c99-j5fv-r62h covers the following CVE IDs: CVE-2026-42916. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5c99-j5fv-r62h?

GHSA-5c99-j5fv-r62h has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-5c99-j5fv-r62hHighCVSS 7.8

Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to...

Vendor

GitHub Security Advisories

Published

June 9, 2026

Last Modified

June 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-42916 →

📋 Description

Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-42916
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42916
https://github.com/advisories/GHSA-5c99-j5fv-r62h