🛡️ CVE-2022-0547
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-305 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-305
Public Exploit ✅ No
Source NVD
Published 2022-03-18
Updated 2026-06-08
Modified 2025-11-03

Affected Packages

Software From version Fixed in
debian-linux
fedora
openvpn 2.5.0 2.5.6

References

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