SB20251210174 - Multiple vulnerabilities in Siemens SIMATIC CN 4100

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Main Vulnerability Database SB20251210174

SB20251210174 - Multiple vulnerabilities in Siemens SIMATIC CN 4100

Published: December 10, 2025

Security Bulletin ID SB20251210174
CSH 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 vulnerabilities.


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

CWE-ID: CWE-77 - Command injection

CVSSv4: 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


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)

CWE-ID: CWE-798 - Use of Hard-coded Credentials

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


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)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


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