CVE-2025-40941 MEDIUM

CVE-2025-40941

Vendor Siemens
Product SIMATIC CN 4100
Weakness CWE-200 · Info exposure
Published December 9, 2025
Last update December 9, 2025

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected devices exposes server information in its responses. This could allow an attacker with network access to gain useful information, increasing the likelihood of targeted attacks.

Key dates

02Disclosure timeline

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