CVE Vulnerability

CVE-2021-4234

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://openvpn.net/vpn-server-resources/release-notes/#openvpn-access-server-2-11-0 Release Notes Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*
Information

Published : 2022-07-06 08:15

Updated : 2022-07-14 12:15

NVD link : CVE-2021-4234

Mitre link : CVE-2021-4234

Products Affected
No products.
CWE
NVD-CWE-Other