CVEvulnerability

CVE-2021-4234

7.5 HIGH Published 2022-07-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-07-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-406

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.

Affected configurations

• openvpn openvpn access server (< 2.11.0)

Related

Weakness · CWE (1)

  • CWE-406 Insufficient Control of Network Message Volume (Network Amplification) weakness

References