CVE-2025-41700

HIGH

CODESYS < 3.5.21.40 - Unauthenticated Remote Code Execution via Malicious Project File

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0012
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-502
Status published
Products (1)
codesys/codesys < 3.5.21.40
Published Dec 01, 2025
Tracked Since Feb 18, 2026