CVE-2026-13698

HIGH

OpenVPN - Missing Release of Memory after Effective Lifetime

Title source: rule

Description

A memory leak in OpenVPN version 2.5.0 through 2.5.11, 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers with a valid tls-crypt-v2 client key to potentially cause a denial of service

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://community.openvpn.net/Security%20Announcements/CVE-2026-13698

Scores

CVSS v3 7.5

EPSS 0.0031

EPSS Percentile 23.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-401 CWE-770

Status published

Products (4)

OpenVPN/OpenVPN 2.5.0 - 2.5.11

openvpn/openvpn 2.5.0 - 2.5.11

OpenVPN/OpenVPN 2.6.0 - 2.6.20

OpenVPN/OpenVPN 2.7_alpha1 - 2.7.4

Published Jul 06, 2026

Tracked Since Jul 06, 2026