# CVE-2025-13086

## Summary

- **CVE ID:** CVE-2025-13086
- **Severity:** MEDIUM
- **CVSS Score:** 4.6 (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)
- **CWE:** CWE-940
- **Published:** Dec 3, 2025
- **Last Modified:** Mar 13, 2026

## 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

## Affected Products

- OpenVPN — OpenVPN (2.6.0)
- OpenVPN — OpenVPN (2.7_alpha1)

## References

- [CNA](https://community.openvpn.net/Security%20Announcements/CVE-2025-13086)
- [CNA](https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html)
- [CNA](https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.64%
- **EPSS Percentile:** 48.7

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._