CVE-2025-24007: Siemens Sirius 3rk3 Modular Safety System Mss

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIRIUS 3RK3 Modular Safety System (MSS) (All versions), SIRIUS Safety Relays 3SK2 (All versions). Affected devices only provide weak password obfuscation. An attacker with network access could retrieve and de-obfuscate the safety password used for protection against inadvertent operating errors.

Affected products

• Siemens Sirius 3rk3 Modular Safety System Mss: any version
• Siemens Sirius Safety Relays 3sk2: any version

Published 2025-05-13. Last modified 2026-06-17.