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.
Published: 2026-10-13
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 16 Oct 2026 02:15:00 +0000

Type Values Removed Values Added
Title Local Deadlock in OpenVPN Windows Driver Leads to Denial of Service

Thu, 15 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Title Deadlock Trigger in OpenVPN Windows Client Device Driver

Wed, 14 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Title Deadlock Trigger in OpenVPN Windows Client Device Driver

Tue, 13 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-413
CWE-833
References
Metrics cvssV4_0

{'score': 6.9, 'vector': '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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: OpenVPN

Published:

Updated: 2026-10-14T18:08:12.000Z

Reserved: 2026-10-05T10:34:02.496Z

Link: CVE-2026-105390

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T23:17:26.470

Modified: 2026-10-15T20:38:04.303

Link: CVE-2026-105390

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-16T02:00:16Z

Weaknesses