CVE-2024-41012 Siemens CVE debrief

Who should care

Operators of Siemens industrial networking infrastructure, particularly those managing RUGGEDCOM and SCALANCE devices running SINEC OS, should verify their configurations against vendor guidance. While the underlying Linux kernel vulnerability exists, the vendor assessment indicates reduced or eliminated risk for these specific product implementations.

Technical summary

The vulnerability exists in the Linux kernel's file locking implementation where a race between fcntl_setlk() and close() could result in unreliable lock removal via do_lock_file_wait(). This is a classic use-after-free class weakness (CWE-416). However, Siemens ProductCERT has determined that for their affected industrial networking products—including RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family running SINEC OS—the reported vulnerability is 'Misinformed,' meaning the conditions required to trigger the vulnerability do not exist or the impact assessment does not apply to these products in their operational context.

Defensive priority

routine

Recommended defensive actions

• Review Siemens ProductCERT advisory SSA-355557 for definitive product-specific guidance
• Verify SINEC OS and SCALANCE/RUGGEDCOM firmware versions against vendor security notifications
• Apply standard ICS defense-in-depth practices per CISA recommended practices
• Monitor CISA ICS advisories for any future reassessment of this CVE

Evidence notes

The source advisory (ICSA-25-226-07) explicitly categorizes the impact for affected Siemens products as 'Misinformed' per the threats section, indicating the CVE does not represent a genuine vulnerability for these specific products. The advisory underwent multiple revisions, with the most recent on 2026-02-25 incorporating updates from Siemens ProductCERT advisory SSA-355557.

Official resources