CVE-2026-24032: Siemens Sinec Nms

High severity, CVSS 7.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3 with UMC). The affected application contains an authentication weakness due to insufficient validation of user identity in the UMC component. This could allow an unauthenticated remote attacker to bypass authentication and gain unauthorized access to the application. (ZDI-CAN-27564)

Affected products

• Siemens Sinec Nms: before V4.0 SP3 (fixed in V4.0 SP3)

Published 2026-04-14. Last modified 2026-06-17.