CVE-2026-13122

State: Published
Severity: 5.9 Medium
Published: Jul 6, 2026
Updated: Jul 6, 2026
Reserved: Jun 23, 2026

Description

OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled

Scores

CVSS	Score	Vector	Source
4.0	5.9 Medium	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	OpenVPN

Weaknesses

CWE-617 Reachable Assertion

Affected Products

Product	Versions
OpenVPNOpenvpn	2.6.0 through 2.6.20Affected 2.7_alpha1 through 2.7.4Affected

References

https://community.openvpn.net/Security%20Announcements/CVE-2026-13122vendor-advisory

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