#VU109893 Missing Encryption of Sensitive Data in SIRIUS 3RK3 Modular Safety System (MSS) and SIRIUS Safety Relays 3SK2 - CVE-2025-24008

Vulnerability identifier: #VU109893

Vulnerability risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-24008

CWE-ID: CWE-311

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SIRIUS 3RK3 Modular Safety System (MSS)
Hardware solutions / Firmware
SIRIUS Safety Relays 3SK2
Hardware solutions / Firmware

Vendor: Siemens

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to lack of encryption of sensitive information in transit. A remote attacker can retrieve sensitive information.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SIRIUS 3RK3 Modular Safety System (MSS): All versions

SIRIUS Safety Relays 3SK2: All versions

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External links
https://cert-portal.siemens.com/productcert/html/ssa-222768.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.