BaseFortify

Publication date: 2025-12-01

Last updated on: 2026-02-23

Assigner: CERT VDE

Description

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-12-01

Last Modified

2026-02-23

Generated

2026-07-06

AI Q&A

2025-12-01

EPSS Evaluated

2026-07-05

NVD

CVE-2025-41700

EUVD

EUVD-2025-199974

Affected Vendors & Products

Vendor	Product	Version / Range
codesys	codesys	to 3.5.21.40 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-502	The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

Executive Summary

This vulnerability allows an unauthenticated attacker to trick a local user into executing arbitrary code by opening a specially crafted CODESYS project file with the CODESYS development system. The malicious code runs with the user's privileges.

Impact Analysis

The impact of this vulnerability is that an attacker can execute arbitrary code on your system with your user privileges, potentially leading to data compromise, system manipulation, or further attacks within the affected environment.

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