CVE-2025-41768 MEDIUM

CVE-2025-41768: Beckhoff: XSS Vulnerability in TwinCAT 3 HMI Server

Vendor Beckhoff Automation
Product TwinCAT.HMI.Server
Weakness CWE-79 · XSS
Published January 20, 2026
Last update February 12, 2026

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

An high privileged remote attacker can inject arbitrary content into the custom CSS field on the affected devices due to improper neutralization of input during web page generation ('Cross-site Scripting').

Key dates

02Disclosure timeline

January 20, 2026 CVE published
February 12, 2026 Record updated