VULNERABILITY INTELLIGENCE

CVE-2021-4234

CVSS score7.5 HIGH
EPSS probability0.89%
CISA KEVNot currently listed
Published2022-07-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • security@openvpn.net: CWE-406
  • nvd@nist.gov: NVD-CWE-Other

Primary references