OpenVPN OVPN-DCO for Windows NULL Pointer Dereference Vulnerability Leading to System Halt

Vulnerability

A vulnerability in OpenVPN OVPN-DCO for Windows, specifically in version 1.1.1, allows an unprivileged local attacker to send I/O control messages with invalid data to the driver. This action causes a NULL pointer dereference, which ultimately leads to a system crash.

Impact

Exploitation of this vulnerability causes a system crash due to a NULL pointer dereference.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
2.5
exploitability
3.3
remediation
0.0
relevance
0.0
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.