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Fencer Intel
medium 5.5

CVE-2025-41768 json

Beckhoff: XSS Vulnerability in TwinCAT 3 HMI Server

published 9mo ago modified 4mo ago also EUVD-2026-3464

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

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').

Patch / fix

  • Beckhoff Automation TwinCAT.HMI.Server 14.4.267
  • Beckhoff Automation TF2000-HMI-Server 14.4.267

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9mo ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Affected products

  • Beckhoff Automation TwinCAT.HMI.Server
  • Beckhoff Automation TF2000-HMI-Server

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.