CVE-2026-82325: CWE-416 Use after free in OpenVPN ovpn-dco-win
Description
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. This flaw allows local authenticated users to cause a system crash by sending crafted control messages. The vulnerability has a medium severity rating with a CVSS score of 6.8. No public exploits are known, and no patch or vendor advisory information is provided regarding remediation.
CVSS v4.0
Score 6.8medium
Affected software
OpenVPN
ovpn-dco-win
pkg:github/openvpn/ovpn-dco-winRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-82325) involves a use-after-free condition in the ovpn-dco-win driver component of OpenVPN versions 2.5.0 through 2.8.6. Local authenticated users can exploit this flaw by crafting specific control messages that trigger a system crash. The CVSS 4.0 vector indicates low attack complexity and privileges required, but the impact is limited to causing a denial of service (system crash). There is no indication of remote exploitation or privilege escalation. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows local authenticated users to cause a denial of service via a system crash. There is no evidence of code execution or data compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local access to trusted users only and monitor for unusual system crashes related to OpenVPN ovpn-dco-win driver activity.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OpenVPN
- Date Reserved
- 2026-08-28T13:49:51.026Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9e9e82acd9273b49844d66
Added to database: 09/07/2026, 11:22:42 UTC
Last enriched: 09/15/2026, 01:02:29 UTC
Last updated: 10/23/2026, 01:15:27 UTC
Views: 92
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