CVE-2026-105390

State: Published
Severity: 6.9 Medium
Published: Oct 13, 2026
Updated: Oct 14, 2026
Reserved: Oct 5, 2026

Description

Improper synchronization in the OpenVPN ovpn-dco-win for Windows versions 0.6.5 through 1.3.5 and 2.4.0 through 2.8.7 allows local attackers to trigger a deadlock via a crafted write to the ovpn-dco device, causing the host to become unresponsive.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	OpenVPN

Weaknesses

CWE-413 Improper resource locking
CWE-833 Deadlock

Affected Products

Product	Versions
ovpn-dco-winOpenVPN	0.6.5 through 1.3.5Affected 2.4.0 through 2.8.7Affected

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-105390vendor-advisory

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