CVE-2023-46849

Severity CVSS v4.0:

Pending analysis

Type:

CWE-369 Divide By Zero

Publication date:

11/11/2023

Last modified:

11/06/2025

Description

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:openvpn:openvpn:::::community:::*	2.6.0 (including)	2.6.6 (including)
cpe:2.3:a:openvpn:openvpn_access_server::::::::	2.11.0 (including)	2.11.3 (including)
cpe:2.3:a:openvpn:openvpn_access_server:2.12.0:::::::*
cpe:2.3:a:openvpn:openvpn_access_server:2.12.1:::::::*
cpe:2.3:o:debian:debian_linux:12.0:::::::*
cpe:2.3:o:fedoraproject:fedora:39:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-46849

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools