What is GHSA-hgrc-8wgv-4gxf?

GHSA-hgrc-8wgv-4gxf is a security advisory published by GitHub Security Advisories with Critical severity. Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker...

Which CVE IDs does GHSA-hgrc-8wgv-4gxf cover?

GHSA-hgrc-8wgv-4gxf covers the following CVE IDs: CVE-2026-73009. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-hgrc-8wgv-4gxf?

GHSA-hgrc-8wgv-4gxf has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-hgrc-8wgv-4gxfCriticalCVSS 9.8

Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker...

Vendor

GitHub Security Advisories

Published

September 8, 2026

Last Modified

September 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-73009 →

📋 Description

Use after free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-73009
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73009
https://github.com/advisories/GHSA-hgrc-8wgv-4gxf