CVE-2026-25655: Siemens Sinec Nms

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP2). The affected application permits improper modification of a configuration file by a low-privileged user. This could allow an attacker to load malicious DLLs, potentially leading to arbitrary code execution with administrative privilege.(ZDI-CAN-28107)

Affected products

• Siemens Sinec Nms: before 4.0 (fixed in 4.0); version 4.0 only

Published 2026-02-10. Last modified 2026-06-17.