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Ovpn Dco Win

3 CVEs product

Monthly

CVE-2026-11604 Jun 10, 21:04 MEDIUM This Month

Heap-based buffer overflow in OpenVPN's ovpn-dco-win Windows kernel driver (versions 2.0.0-2.8.3) allows a remote authenticated VPN peer to crash the host system by sending a crafted data packet that exploits an incorrect buffer size calculation in the epoch key generator. Because the vulnerable code executes in kernel mode, the resulting memory corruption causes a full system crash (BSOD), not a user-space fault. No public exploit code has been identified and this CVE is not listed in CISA KEV at time of analysis, though the kernel-level availability impact is severe when conditions are met.

Buffer Overflow Denial Of Service Openvpn Ovpn Dco Win
NVD GitHub VulDB
CVSS 4.0
5.6
EPSS
0.1%
CVE-2025-50054 Jun 20, 07:15 MEDIUM PATCH This Month

Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash

Buffer Overflow Heap Overflow Openvpn Ovpn Dco Win
NVD
CVSS 3.1
5.5
EPSS
0.0%
CVE-2024-5198 Jan 15, 13:15 LOW Monitor

OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.

Windows Denial Of Service Null Pointer Dereference Microsoft Openvpn +1
NVD
CVSS 3.1
3.3
EPSS
0.1%
EPSS 0% CVSS 5.6
MEDIUM This Month

Heap-based buffer overflow in OpenVPN's ovpn-dco-win Windows kernel driver (versions 2.0.0-2.8.3) allows a remote authenticated VPN peer to crash the host system by sending a crafted data packet that exploits an incorrect buffer size calculation in the epoch key generator. Because the vulnerable code executes in kernel mode, the resulting memory corruption causes a full system crash (BSOD), not a user-space fault. No public exploit code has been identified and this CVE is not listed in CISA KEV at time of analysis, though the kernel-level availability impact is severe when conditions are met.

Buffer Overflow Denial Of Service Openvpn +1
NVD GitHub VulDB
EPSS 0% CVSS 5.5
MEDIUM PATCH This Month

Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash

Buffer Overflow Heap Overflow Openvpn +1
NVD
EPSS 0% CVSS 3.3
LOW Monitor

OpenVPN ovpn-dco for Windows version 1.1.1 allows an unprivileged local attacker to send I/O control messages with invalid data to the driver resulting in a NULL pointer dereference leading to a. Rated low severity (CVSS 3.3), this vulnerability is low attack complexity. No vendor patch available.

Windows Denial Of Service Null Pointer Dereference +3
NVD

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