#VU112902 Input validation error in SIMATIC CN 4100 - CVE-2025-40593

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Main Vulnerability Database Vulnerabilities #VU112902

#VU112902 Input validation error in SIMATIC CN 4100 - CVE-2025-40593

Published: July 15, 2025


Vulnerability identifier: #VU112902
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-40593
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SIMATIC CN 4100
Software vendor:
Siemens

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected application allows to control the device by storing arbitrary files in the SFTP folder of the device. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links