CVE-2026-11604: CWE-131 Incorrect calculation of buffer size in OpenVPN ovpn-dco-win
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).
CVE-2026-11604: CWE-131 Incorrect calculation of buffer size in OpenVPN ovpn-dco-win
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).
CVSS v4.0
Score 5.6medium
Affected software
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OpenVPN
- Date Reserved
- 2026-06-08T15:19:28.369Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a29dafc3187570649959429
Added to database: 6/10/2026, 9:45:32 PM
Last updated: 6/10/2026, 9:45:56 PM
Views: 1
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