CVE-2025-13086

MEDIUM EPSS 44.7%
Published Dec 3, 20256mo ago · Modified Jun 17, 20261w ago
4.6 CVSS 4.0
Medium
Find Similar
Published Dec 3, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago

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

CVSS Details

Base Score
4.6
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
44.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-940

Affected Products 8

VendorProductVersionRange
openvpnopenvpn*≥2.6.0  –  <2.6.16
openvpnopenvpn2.7any
openvpnopenvpn2.7any
openvpnopenvpn2.7any
openvpnopenvpn2.7any
openvpnopenvpn2.7any
openvpnopenvpn2.7any
openvpnopenvpn2.7any

References 3

  • community.openvpn.net https://community.openvpn.net/Security%20Announcements/CVE-2025-13086
    Vendor Advisory
  • mail-archive.com https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00151.html
    Mailing ListRelease Notes
  • mail-archive.com https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00152.html
    Mailing ListRelease Notes

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.