Check Point Advisories

Siemens SINEC NMS Directory Traversal (CVE-2025-40738)

Vulnerability
Protection

Check Point Reference:	CPAI-2025-14363
Date Published:	6 Apr 2026
Severity:	High
Last Updated:	Monday 06 April, 2026
Source:
Industry Reference:	CVE-2025-40738
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Siemens SINEC NMS prior to 4.0
Vulnerability Description	A directory traversal vulnerability in Siemens SINEC NMS allows attackers to write arbitrary files to restricted locations and potentially execute code with elevated privileges.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Siemens SINEC NMS Directory Traversal (CVE-2025-40738) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: Siemens SINEC NMS Directory Traversal (CVE-2025-40738)