CVE-2026-13122

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

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://community.openvpn.net/Security%20Announcements/CVE-2026-13122	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openvpn:openvpn:::::community:::*
	cpe:2.3:a:openvpn:openvpn:::::community:::*

History

09 Jul 2026, 13:06

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.3
CPE		cpe:2.3:a:openvpn:openvpn:::::community:::*
First Time		Openvpn openvpn Openvpn
References	~~() https://community.openvpn.net/Security%20Announcements/CVE-2026-13122 -~~	() https://community.openvpn.net/Security%20Announcements/CVE-2026-13122 - Vendor Advisory

06 Jul 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-06 16:16

Updated : 2026-07-09 13:06

NVD link : CVE-2026-13122

Mitre link : CVE-2026-13122

CVE.ORG link : CVE-2026-13122

JSON object : View

Products Affected

openvpn

openvpn

CWE

CWE-617

Reachable Assertion

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