Command Injection in SIMATIC CN 4100 - CVE-2025-40937
Published: December 10, 2025
Vulnerability identifier: #VU119797
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-40937
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
SIMATIC CN 4100
SIMATIC CN 4100
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary commands on the system.
The vulnerability exists due to insufficient input validation within REST API. A remote user can pass specially crafted data to the application and execute arbitrary commands.
How to mitigate CVE-2025-40937
Install updates from vendor's website.