CVE-2026-11604: Buffer Overflow
Published Jun 10, 2026
·Updated
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).
Affected Software
1 affected component
OpenVPN ovpn-dco-win>=2.0.0<=2.8.3
Event History
Jun 10, 2026
CVE Published
via MITRE·09:04 PM
Data Sourced
via MITRE·09:04 PM
DescriptionWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-11604?
CVE-2026-11604 has a risk rating of 56, indicating a moderate severity level.
2
How do I fix CVE-2026-11604?
To mitigate CVE-2026-11604, upgrade OpenVPN ovpn-dco-win to version 2.8.4 or later.
3
What impact does CVE-2026-11604 have on my system?
CVE-2026-11604 may lead to a denial of service by causing system crashes due to a heap-based buffer overflow.
4
Who is affected by CVE-2026-11604?
CVE-2026-11604 affects users of OpenVPN ovpn-dco-win versions 2.0.0 through 2.8.3.
5
What type of vulnerability is CVE-2026-11604?
CVE-2026-11604 is classified as a Buffer Overflow vulnerability.