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PatchSiren cyber security CVE debrief

CVE-2024-53227 Siemens CVE debrief

CVE-2024-53227 describes a use-after-free vulnerability in the Linux kernel's SCSI BFA (Brocade Fibre Channel HBA) driver, specifically within the bfad_im_module_exit() function. The vulnerability was published on 2025-08-12 and last modified on 2026-02-25. CISA's advisory ICSA-25-226-07, which was republished on 2026-02-25 based on Siemens ProductCERT advisory SSA-355557, lists this CVE as affecting Siemens industrial networking products including the RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family devices. However, the threat assessment in the source material categorizes the impact as 'Misinformed' for the listed product IDs, suggesting the vulnerability's applicability to these specific Siemens products may be limited or incorrectly attributed. The vulnerability originates from the Linux kernel's SCSI subsystem and would typically require local access or specific conditions to trigger during module exit operations. No CVSS score or severity rating is available in the source material. The advisory has undergone multiple revisions, with the most significant update on 2026-02-24 removing numerous rejected CVEs and clarifying affected product configurations.

Vendor
Siemens
Product
RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2025-08-12
Original CVE updated
2026-02-25
Advisory published
2025-08-12
Advisory updated
2026-02-25

Who should care

Organizations operating Siemens RUGGEDCOM RST2428P or SCALANCE XC/XR series industrial Ethernet switches, particularly those deployed in critical infrastructure environments. Security teams managing SINEC OS-based devices should monitor Siemens ProductCERT advisories for definitive guidance. The 'Misinformed' classification warrants verification with vendor guidance before prioritizing remediation efforts.

Technical summary

The vulnerability exists in the bfad_im_module_exit() function of the Linux kernel's BFA (Brocade Fibre Channel HBA) SCSI driver. A use-after-free condition occurs during module exit, potentially leading to memory corruption or system instability. This is a kernel-level vulnerability in third-party open-source components used in Siemens industrial networking products. The 'Misinformed' threat categorization in the source advisory suggests the actual exploitability or impact on the listed Siemens products may differ from standard kernel vulnerability assessments.

Defensive priority

medium

Recommended defensive actions

  • Review Siemens ProductCERT advisory SSA-355557 for definitive product impact assessment
  • Verify kernel version and BFA driver presence on affected Siemens devices
  • Apply vendor-provided firmware updates when available per Siemens security advisory
  • Monitor CISA ICS advisories for updates to ICSA-25-226-07
  • Implement defense-in-depth strategies for industrial control systems per CISA recommended practices

Evidence notes

Source material indicates this CVE is listed in CISA advisory ICSA-25-226-07 with 'Misinformed' impact categorization for affected product IDs CSAFPID-0006, CSAFPID-0002, and CSAFPID-0003. The advisory was republished on 2026-02-25 based on Siemens ProductCERT SSA-355557. Multiple revision history entries show ongoing refinement of affected product lists, with CVEs removed in the 2026-02-24 update.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-53227 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-53227

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-53227 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-53227

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-226-07.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-355557.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-355557.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-07

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.