CVE-2026-82325 PUBLISHED

Assigner: OpenVPN
Reserved: 28.08.2026 Published: 07.09.2026 Updated: 07.09.2026

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

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score: 6.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Local	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	OpenVPN
Product	ovpn-dco-win
Versions	Default: unaffected affected from 2.5.0 to 2.8.6 (incl.)

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-82325

Problem Types

CWE-416 Use after free CWE
CWE-415 Double free CWE