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
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| OpenVPN | OpenVPN | >= 2.6.0, <= 2.6.15; >= 2.7_alpha1, <= 2.7_rc1 |
References
- https://community.openvpn.net/Security%20Announcements/CVE-2025-13086Vendor Advisory
- https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.htmlMailing List, Release Notes
- https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.htmlMailing List, Release Notes
Timeline
- Published
- Dec 3, 2025
- Last modified
- Sep 25, 2026
- NVD status
- Analyzed