EUVD-2026-100757

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...

CVE-2026-105390

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...

CVE-2026-105390

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...

CVE-2026-105390

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...

CVE-2026-105390

The OpenVPN ovpn-dco-win component for Windows versions 0.6.5 through 1.3.5 and 2.4.0 through 2.8.7 is vulnerable to a deadlock caused by improper synchronization . A local attacker can trigger this condition by performing a crafted write to the ovpn-dco device , which results in the host becomin...

CVE-2026-105390: Improper Resource Locking

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...

PT-2026-113548

Name of the Vulnerable Software and Affected Versions OpenVPN ovpn-dco-win versions 0.6.5 through 1.3.5 OpenVPN ovpn-dco-win versions 2.4.0 through 2.8.7 Description Improper synchronization in the Windows component allows local attackers to trigger a deadlock by performing a crafted write to the...

SUSE CVE-2026-82325

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

CVE-2026-82325

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

CVE-2026-82325

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

EUVD-2026-72348

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

CVE-2026-82325

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

CVE-2026-82325

CVE-2026-82325 is a use-after-free vulnerability in the OpenVPN ovpn-dco-win driver, affecting versions 2.5.0 through 2.8.6 . A local authenticated user can trigger a system crash by sending crafted control messages to the driver. The CVSS 4.0 score is 6.8 (MEDIUM) , with a local attack vector, l...

CVE-2026-82325: Use After Free

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

PT-2026-86680

A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages...

CVE-2026-11604

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: Incorrect Calculation of Buffer Size

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...

OpenVPN 2.7.0_beta3 < 2.7.0_I017 Buffer Overflow (Windows)

According to its self-reported version number, the version of OpenVPN installed on the remote Windows host is affected by buffer overflow vulnerability: - The ovpn-dco-win version 2.8.0 has a flaw which appears when connecting to an OpenVPN 2.7.0 server, or other implementations with data epoch...

CVE-2026-2738

Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too large packets to the remote peer when the AEAD tag appears at the end of the encrypted packet...

OpenVPN ovpn-dco-win security vulnerability

OpenVPN ovpn-dco-win is a virtual network adapter for Windows developed by OpenVPN. Version 2.8.0 of OpenVPN ovpn-dco-win contains a security vulnerability. This vulnerability arises when AEAD tags appear at the end of encrypted packets, and sending excessively large packets to remote peers may...