1. Home
  2. CVE Database
  3. CVE-2025-40937
HIGH · 8.3

CVE-2025-40937

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of un...

Vulnerability Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of unexpected arguments. This could allow an authenticated attacker to execute arbitrary code with limited privileges.

CVSS Score

8.3

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
LOW

Affected Products

VendorProductVersions
SiemensSimatic Cn 4100 Firmware< 4.0.1
SiemensSimatic Cn 4100-

Related Weaknesses (CWE)

CWE-77

References

FAQ

What is CVE-2025-40937?

CVE-2025-40937 is a vulnerability with a CVSS score of 8.3 (HIGH). A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected application do not properly validate input parameters in its REST API, resulting in improper handling of un...

How severe is CVE-2025-40937?

CVE-2025-40937 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-40937?

Check the references section above for vendor advisories and patch information. Affected products include: Siemens Simatic Cn 4100 Firmware, Siemens Simatic Cn 4100.