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    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.

    Published:Oct 13, 2026
    Last Modified:Oct 23, 2026
    EPS:Oct 13, 2026
    EPSS Score:0.00113
    CVSS Score:6.9

    Affected Products

    Vendor
    Openvpn
    Product
    Ovpn-dco-win

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-25 Forced Deadlock

    Related CVEs

    CVE-2026-115402 (CVSS 5.7) — OpenVPN ovpn-dco-win 0.6.5 through 2.8.13 allows unprivileged local users to cause a denial of service (system…
    CVE-2026-82325 (CVSS 6.8) — A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver version 2.5.0 through 2.8.6 allows local aut…
    CVE-2026-11604 (CVSS 5.6) — An incorrect buffer size calculation in the epoch key generator in OpenVPN ovpn-dco-win version 2.0.0 through …
    CVE-2026-2738 (CVSS 5.6) — Buffer overflow in ovpn‑dco‑win version 2.8.0 allows local attackers to cause a system crash by sending too la…
    CVE-2025-50054 (CVSS 5.5) — Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local…
    CVE-2024-5198 (CVSS 3.3) — OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High