🛡️ CVE-2026-13698 — openvpn

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-401 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2026-13698 is classified as CWE-401: Memory Leak. Allocated memory is never released, so long-running or repeated operations gradually exhaust it.

Affected software

CVE-2026-13698 is recorded against 1 package.

  • openvpn (from 2.7 up to 2.7.5)

Timeline and source

Published on 6 July 2026 and last revised on 9 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

community.openvpn.net

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-401
Public Exploit ✅ No
Source NVD
Published 2026-07-06
Updated 2026-08-11
Modified 2026-07-09
Fix URL N/A

Affected Packages

Software From version Fixed in
openvpn 2.7 2.7.5

Site Security Check

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