CVE-2021-33726: Siemens Sinec Nms

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system allows to download arbitrary files under a user controlled path and does not correctly check if the relative path is still within the intended target directory.

Affected products

• Siemens Sinec Nms: before 1.0 (fixed in 1.0); version 1.0 only

Published 2021-10-12. Last modified 2026-06-17.