CVE-2026-13698: Openvpn

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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

Affected products

• Openvpn Openvpn: from 2.5.0, up to and including 2.5.11; from 2.6.0, before 2.6.21 (fixed in 2.6.21); from 2.7, before 2.7.5 (fixed in 2.7.5)

Published 2026-07-06. Last modified 2026-07-09.