CVE-2025-13086

State: Published
Severity: 4.6 Medium
Published: Dec 3, 2025
Updated: Dec 12, 2025
Reserved: Nov 12, 2025

Description

Improper validation of source IP addresses in OpenVPN version 2.6.0 through 2.6.15 and 2.7_alpha1 through 2.7_rc1 allows an attacker to open a session from a different IP address which did not initiate the connection resulting in a denial of service for the originating client

Scores

CVSS	Score	Vector	Source
4.0	4.6 Medium	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U	OpenVPN

Weaknesses

CWE-940 Improper Verification of Source of a Communication Channel

Affected Products

Product	Versions
OpenVPNOpenVPN	2.6.0 through 2.6.15Affected 2.7_alpha1 through 2.7_rc1Affected

References

https://community.openvpn.net/Security%20Announcements/CVE-2025-13086vendor-advisory
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.htmlrelease-notes
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.htmlrelease-notes

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