What is GHSA-x4m3-34g5-88j8?

GHSA-x4m3-34g5-88j8 is a security advisory published by GitHub Security Advisories with High severity. Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker...

Which CVE IDs does GHSA-x4m3-34g5-88j8 cover?

GHSA-x4m3-34g5-88j8 covers the following CVE IDs: CVE-2026-50407. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-x4m3-34g5-88j8?

GHSA-x4m3-34g5-88j8 has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-x4m3-34g5-88j8HighCVSS 7.8

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-50407 →

📋 Description

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-50407
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50407
https://github.com/advisories/GHSA-x4m3-34g5-88j8