CVE-2025-41700 HIGH

CVE-2025-41700: CODESYS Development System - Deserialization of Untrusted Data

Vendor Codesys
Product CODESYS Development System
Weakness CWE-502 · Unsafe deserialization
Published December 1, 2025
Last update December 1, 2025
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 1, 2025 CVE published
December 1, 2025 Record updated