What is GHSA-v8ww-fhqp-9vff?

GHSA-v8ww-fhqp-9vff is a security advisory published by GitHub Security Advisories with High severity. OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by...

Which CVE IDs does GHSA-v8ww-fhqp-9vff cover?

GHSA-v8ww-fhqp-9vff covers the following CVE IDs: CVE-2026-11771. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-v8ww-fhqp-9vff?

GHSA-v8ww-fhqp-9vff has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-v8ww-fhqp-9vffHighCVSS 7.5

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by...

Vendor

GitHub Security Advisories

Published

July 30, 2026

Last Modified

August 5, 2026

🔗 CVE IDs covered (1)

CVE-2026-11771 →

📋 Description

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy authentication to potentially cause a crash via a crafted NTLM response from a malicious proxy server

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-11771
https://community.openvpn.net/ReleaseHistory#openvpn-2621-released-1-july-2026
https://community.openvpn.net/ReleaseHistory#openvpn-275-released-1-july-2026
https://community.openvpn.net/Security%20Announcements/CVE-2026-11771
https://github.com/advisories/GHSA-v8ww-fhqp-9vff