CVE-2026-82325
MediumCVSS 6.8Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
A use-after-free vulnerability in the OpenVPN ovpn-dco-win driver versions 2.5.0 through 2.8.6 allows local authenticated users to cause a system crash via crafted control messages.
Risk Assessment
The risk includes the possibility of a local denial of service by an authenticated user, potentially disrupting services.
Recommendation
It is recommended to update the ovpn-dco-win driver to a version newer than 2.8.6 that includes the fix.
Other vulnerabilities in OpenVPN ovpn-dco-win
See all- CVE-2026-115402Medium
OpenVPN ovpn-dco-win versions 0.6.5 through 2.8.13 allow unprivileged local users to cause a denial of service (system crash) via a race condition in the TCP connect path.
- CVE-2026-105390Medium
Improper synchronization in 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-2026-11604Medium
In OpenVPN ovpn-dco-win versions 2.0.0 through 2.8.3, an incorrect buffer size calculation in the epoch key generator allows a remote authenticated peer to trigger a heap-based buffer overflow and kernel memory corruption via a crafted data packet, causing a system crash.
Original NVD description (English source)
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
Vulnerability data from NVD (NIST) · CISA KEV · EPSS