cve.bz

CVE-2021-4234

7.5 highEPSS 0.9%

High (7.5) in openvpn openvpn access server. EPSS 0.9% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
CWE
CWE-406
Published
Modified
Record from
the NVD, synced

Affected

References

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