Deserialization in Beckhoff Te1000 | Twincat 3 Enineering

CVE-2025-41701

An unauthenticated attacker can trick a local user into executing arbitrary commands by opening a deliberately manipulated project file with an affected engineering tool. These arbitrary commands are executed in the user context.

Vulnerability class: Insecure Deserialization

EPSS: 0.002 (5.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-41701?
CVE-2025-41701 is a high-severity vulnerability in Beckhoff Te1000 | Twincat 3 Enineering, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2025-09-09.
How severe is CVE-2025-41701?
High severity. CVSS v3 base score is 7.8 out of 10.