What is CVE-2025-41700?

CVE-2025-41700 is a high-severity vulnerability in Codesys Development System, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2025-12-01.

How severe is CVE-2025-41700?

High severity. CVSS v3 base score is 7.8 out of 10.

Deserialization in Codesys Development System

CVE-2025-41700

An unauthenticated attacker can trick a local user into executing arbitrary code by opening a deliberately manipulated CODESYS project file with a CODESYS development system. This arbitrary code is executed in the user context.

Vulnerability class: Insecure Deserialization

EPSS: 0.000 (13.5th 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

Codesys Development System — versions 0.0.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

certvde.com/de/advisories/VDE-2025-101

Frequently asked questions

What is CVE-2025-41700?: CVE-2025-41700 is a high-severity vulnerability in Codesys Development System, classified under Deserialization of Untrusted Data. CVSS score: 7.8/10. Published 2025-12-01.
How severe is CVE-2025-41700?: High severity. CVSS v3 base score is 7.8 out of 10.