CVE-2025-13086

7.5 HIGH
Published: December 03, 2025 Modified: January 30, 2026
View on NVD

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

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://community.openvpn.net/Security%20Announcements/CVE-2025-13086
Source: security@openvpn.net
Vendor Advisory
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.html
Source: security@openvpn.net
Mailing List Release Notes
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html
Source: security@openvpn.net
Mailing List Release Notes

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
19th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-940

Affected Vendors

openvpn

Related CVEs

CVE-2026-4779 6.3
CVE-2026-4778 6.3
CVE-2026-4777 6.3
CVE-2026-4433 N/A
CVE-2026-4371 N/A