CVE-2026-13698

State: Published
Severity: 6.0 Medium
Published: Jul 6, 2026
Updated: Jul 6, 2026
Reserved: Jun 29, 2026

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

Scores

CVSS	Score	Vector	Source
4.0	6.0 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	OpenVPN

Weaknesses

CWE-401 Missing release of memory after effective lifetime
CWE-770 Allocation of resources without limits or throttling

Affected Products

Product	Versions
OpenVPNOpenVPN	2.5.0 through 2.5.11Affected 2.6.0 through 2.6.20Affected 2.7_alpha1 through 2.7.4Affected

References

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

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