SB20251210174 - Multiple vulnerabilities in Siemens SIMATIC CN 4100 

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20251210174

SB20251210174 - Multiple vulnerabilities in Siemens SIMATIC CN 4100

Published: December 10, 2025

Security Bulletin ID SB20251210174
Severity
High
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 20% Medium 40% Low 40%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Command Injection (CVE-ID: CVE-2025-40937)

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.


2) Use of hard-coded credentials (CVE-ID: CVE-2025-40938)

The vulnerability allows a remote attacker to gain full access to vulnerable system.

The vulnerability exists due to presence of hard-coded credentials in application code. A remote unauthenticated attacker can access the affected system using the hard-coded credentials.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


3) Improper access control (CVE-ID: CVE-2025-40939)

The vulnerability allows a local attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to the affected device contains a USB port which allows unauthenticated connections. An attacker with physical access can bypass implemented security restrictions and perform a denial of service (DoS) attack.


4) Information disclosure (CVE-ID: CVE-2025-40940)

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to the affected application exhibits inconsistent SNMP behavior. A remote administrator can gain unauthorized access to sensitive information on the system.


5) Information disclosure (CVE-ID: CVE-2025-40941)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected devices exposes server information in its responses. A remote user can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.

References