Mend.io Vulnerability Database

What is a CVE vulnerability ID? icon What is a WS vulnerability ID? icon What is an MSC vulnerability ID? icon
New vulnerability? Tell us about it!
icon

We found results for “”

CVE-2025-13086

Good to know:

icon
icon

Date: December 3, 2025

Improper validation of source IP addresses in OpenVPN version 2.6.0 before 2.6.16 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

Severity Score

Related Resources (5)

https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.html
https://nvd.nist.gov/vuln/detail/CVE-2025-13086
https://community.openvpn.net/Security%20Announcements/CVE-2025-13086
https://www.mend.io/vulnerability-database/CVE-2025-13086

Severity Score

Weakness Type (CWE)

Improper Verification of Source of a Communication Channel

CWE-940

Top Fix

icon

Upgrade Version

Upgrade to version https://github.com/OpenVPN/openvpn.git - v2.6.16

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

Do you need more information?

Contact Us