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PatchSiren cyber security CVE debrief

CVE-2024-42105 Siemens CVE debrief

A use-after-free vulnerability in the nilfs2 filesystem affects Siemens industrial networking products running SINEC OS. The vulnerability was initially listed in CISA advisory ICSA-25-226-07 published 2025-08-12, which was subsequently revised multiple times through 2026-02-25 to correct affected product listings and remove rejected CVEs. The source advisory explicitly marks impact as 'Misinformed' for the affected product IDs, indicating this CVE's applicability to the listed Siemens products may be erroneous or overstated. No CVSS score or severity is available in the source corpus. The vulnerability originates in the Linux kernel nilfs2 filesystem implementation, not in Siemens proprietary code.

Vendor
Siemens
Product
RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS
HIGH 7.8
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

Operators of Siemens RUGGEDCOM RST2428P and SCALANCE XC/XR/XCM/XRM/XCH/XRH families running SINEC OS; industrial control system security teams tracking third-party Linux kernel vulnerabilities in OT environments

Technical summary

The nilfs2 filesystem in the Linux kernel contains a use-after-free condition. This CVE was included in CISA advisory ICSA-25-226-07 covering third-party components in Siemens SINEC OS, which powers RUGGEDCOM and SCALANCE industrial network devices. However, the source advisory explicitly categorizes impact as 'Misinformed' for the affected product identifiers, suggesting the CVE may have been incorrectly associated with these products. The nilfs2 filesystem is a log-structured file system not commonly deployed on industrial network appliances, which typically use standard filesystems like ext4 or proprietary implementations. Multiple advisory revisions (2026-02-12, 2026-02-24, 2026-02-25) corrected product listings and removed rejected CVEs, indicating ongoing accuracy improvements to the advisory.

Defensive priority

low

Recommended defensive actions

  • Verify whether nilfs2 filesystem is enabled or accessible on affected Siemens devices; nilfs2 is not typically used in industrial network appliance deployments
  • Monitor Siemens ProductCERT advisory SSA-355557 for definitive product impact confirmation
  • Apply SINEC OS security updates as directed by Siemens ProductCERT when available
  • Review CISA ICS recommended practices for defense-in-depth strategies for industrial control systems

Evidence notes

Source CISA CSAF advisory ICSA-25-226-07 marks impact as 'Misinformed' for product IDs CSAFPID-0006, CSAFPID-0002, and CSAFPID-0003, which include RUGGEDCOM RST2428P and SCALANCE families. Advisory revision history shows multiple corrections to affected product listings. No CVSS vector or score present in source.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-42105 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-42105

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

  • CVE-2024-42105 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-42105

    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.