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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2992-1 | openvpn security update |
Debian DLA |
DLA-4079-1 | openvpn security update |
EUVD |
EUVD-2022-15669 | 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. |
Ubuntu USN |
USN-5347-1 | OpenVPN vulnerability |
Ubuntu USN |
USN-6850-1 | OpenVPN vulnerability |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 03 Nov 2025 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Wed, 23 Apr 2025 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Projects
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Status: PUBLISHED
Assigner: OpenVPN
Published:
Updated: 2025-11-03T20:34:30.191Z
Reserved: 2022-02-08T00:00:00.000Z
Link: CVE-2022-0547
Updated: 2025-11-03T20:34:30.191Z
Status : Modified
Published: 2022-03-18T18:15:12.017
Modified: 2025-11-03T21:15:49.843
Link: CVE-2022-0547
No data.
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN