CVE-2025-40937 HIGH

CVE-2025-40937

Vendor Siemens
Product SIMATIC CN 4100
Weakness CWE-77
Published December 9, 2025
Last update December 9, 2025
View on NVD All CVEs

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of unexpected arguments. This could allow an authenticated attacker to execute arbitrary code with limited privileges.

Key dates

02Disclosure timeline

December 9, 2025 CVE published
December 9, 2025 Record updated