Description
A vulnerability has been identified in SIRIUS 3RK3 Modular Safety System (MSS) (All versions), SIRIUS Safety Relays 3SK2 (All versions). The affected devices do not encrypt data in transit. An attacker with network access could eavesdrop the connection and retrieve sensitive information, including obfuscated safety passwords.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | SIRIUS 3RK3 Modular Safety System (MSS) | — | — |
| Siemens | SIRIUS Safety Relays 3SK2 | — | — |
Advisories 3
- NCSC-2025-0160 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · May 14, 2025
- ICSA-25-135-13 Siemens SIRIUS CISA ICS & IT advisories · May 13, 2025
- SSA-222768 SSA-222768: Multiple Vulnerabilities in SIRIUS 3SK2 Safety Relays and 3RK3 Modular Safety Systems Siemens ProductCERT · May 13, 2025