CVE-2021-4234
moderate-risk
Published 2022-07-06
OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not respond to, resulting in a limited amplification attack.
Do I need to act?
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0.39% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Openvpn Access Server
Affected Vendors
References (2)
32
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal