What is GHSA-66gf-59r4-7c5w?

GHSA-66gf-59r4-7c5w is a security advisory published by GitHub Security Advisories with High severity. Use after free in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized...

Which CVE IDs does GHSA-66gf-59r4-7c5w cover?

GHSA-66gf-59r4-7c5w covers the following CVE IDs: CVE-2026-57089. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-66gf-59r4-7c5w?

GHSA-66gf-59r4-7c5w has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-66gf-59r4-7c5wHighCVSS 7.5

Use after free in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized...

Vendor

GitHub Security Advisories

Published

July 14, 2026

Last Modified

July 14, 2026

🔗 CVE IDs covered (1)

CVE-2026-57089 →

📋 Description

Use after free in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-57089
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57089
https://github.com/advisories/GHSA-66gf-59r4-7c5w