What is GHSA-f6c5-28vq-94w2?

GHSA-f6c5-28vq-94w2 is a security advisory published by GitHub Security Advisories with Medium severity. An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2...

Which CVE IDs does GHSA-f6c5-28vq-94w2 cover?

GHSA-f6c5-28vq-94w2 covers the following CVE IDs: CVE-2026-11604. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-f6c5-28vq-94w2Medium

An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2...

Vendor

GitHub Security Advisories

Published

June 11, 2026

Last Modified

June 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-11604 →

📋 Description

An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2.0.0 through 2.8.3 allows a remote authenticated peer to trigger a heap-based buffer overflow and kernel memory corruption via a crafted data packet, resulting in a system crash (denial of service).

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-11604
https://community.openvpn.net/Security%20Announcements/CVE-2026-11604
https://github.com/OpenVPN/ovpn-dco-win/releases
https://github.com/advisories/GHSA-f6c5-28vq-94w2