CVE-2021-33723: Siemens Sinec Nms

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). An authenticated attacker could change the user profile of any user without proper authorization. With this, the attacker could change the password of any user in the affected system.

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.