What is GHSA-rj95-xj64-7m2x?

GHSA-rj95-xj64-7m2x is a security advisory published by GitHub Security Advisories with High severity. Concurrent execution using shared resource with improper synchronization ('race condition') in...

Which CVE IDs does GHSA-rj95-xj64-7m2x cover?

GHSA-rj95-xj64-7m2x covers the following CVE IDs: CVE-2026-20921. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-rj95-xj64-7m2x?

GHSA-rj95-xj64-7m2x has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-rj95-xj64-7m2xHighCVSS 7.5

Concurrent execution using shared resource with improper synchronization ('race condition') in...

Vendor

GitHub Security Advisories

Published

January 13, 2026

Last Modified

May 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-20921 →

📋 Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-20921
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20921
https://www.vicarius.io/vsociety/posts/cve-2026-20921-detection-script-race-condition-vulnerability-in-windows-smb-server
https://www.vicarius.io/vsociety/posts/cve-2026-20921-remediation-script-race-condition-vulnerability-in-windows-smb-server
https://github.com/advisories/GHSA-rj95-xj64-7m2x