PT-2026-55933 · Openvpn · Openvpn

Published 2026-07-06 · Updated 2026-07-10 · CVE-2026-13698

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenVPN versions 2.5.0 through 2.5.11 OpenVPN versions 2.6.0 through 2.6.20 OpenVPN versions 2.7 alpha1 through 2.7.4

Description A memory leak exists that allows remote attackers possessing a valid tls-crypt-v2 client key to potentially trigger a denial of service. A memory leak occurs when a program fails to release memory it no longer needs, eventually exhausting available system resources.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Allocation of Resources Without Limits

Memory Leak

Weakness Enumeration

CWE-770

CWE-401

Related Identifiers

CVE-2026-13698

Affected Products

Openvpn

References · 6

• https://community.openvpn.net/Security%20Announcements/CVE-2026-13698 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-13698 · Security Note
• https://t.me/cveNotify/188881 · Telegram Post
• https://t.me/cveNotify/188784 · Telegram Post
• https://t.me/CVEtracker/59111 · Telegram Post
• https://twitter.com/cryptostorm_is/status/2075573773399416997 · Twitter Post