CVE-2021-34594 MEDIUM

CVE-2021-34594: Beckhoff: Relative path traversal vulnerability through TwinCAT OPC UA Server

Vendor Beckhoff Automation
Product TwinCAT OPC UA Server
Weakness CWE-23
Published November 4, 2021
Last update September 16, 2024
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

What the vulnerability does

01Description

TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system.

Key dates

02Disclosure timeline

November 4, 2021 CVE published
September 16, 2024 Record updated