CVE-2022-0547
moderate-risk
Published 2022-03-18
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.
Do I need to act?
-
0.50% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (4)
Affected Vendors
References (13)
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/CVE-2022-0547
Vendor Advisory
https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
44
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
2/34 · Minimal
Exposure
10/34 · Low