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CVE-2024-47757 Siemens CVE debrief

CVE-2024-47757 describes a potential out-of-bounds (OOB) read vulnerability in the nilfs2 filesystem's nilfs_btree_check_delete() function. The issue occurs when retrieving the maximum key if the root node has no entries, causing memory access outside the block buffer. This vulnerability was originally published in the Linux kernel context but appears in Siemens industrial products through third-party component inclusion. CISA republished this advisory on 2025-08-12 with subsequent updates through 2026-02-25, including corrections to affected product listings and removal of rejected CVEs. The source advisory (ICSA-25-226-07) marks the impact as 'Misinformed' for the listed Siemens products, suggesting the vulnerability's applicability to these specific industrial control systems may be limited or incorrectly attributed. No CVSS score or severity rating is available in the source corpus. Organizations should verify whether their Siemens SCALANCE or RUGGEDCOM deployments include the vulnerable nilfs2 component and apply vendor guidance accordingly.

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 SCALANCE industrial Ethernet switches, RUGGEDCOM RST2428P devices, or other listed products that may incorporate Linux kernel components including nilfs2 filesystem support.

Technical summary

The nilfs_btree_check_delete() function in nilfs2 performs an out-of-bounds read when the root node has no entries during maximum key retrieval. This vulnerability affects systems where nilfs2 is present as a third-party component, including certain Siemens industrial networking products. The CISA advisory marks impact as 'Misinformed' for the listed product IDs, indicating potential misattribution or limited applicability to the specific Siemens product configurations.

Defensive priority

medium

Recommended defensive actions

  • Verify whether deployed Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family, or RUGGEDCOM RST2428P systems include the nilfs2 filesystem component
  • Review Siemens ProductCERT advisory SSA-355557 for authoritative product-specific guidance
  • Apply vendor-provided patches or configuration guidance when available
  • Monitor CISA ICS advisories for updates to ICSA-25-226-07
  • Implement defense-in-depth strategies per CISA ICS recommended practices for industrial control systems

Evidence notes

Source CISA CSAF advisory ICSA-25-226-07 republished 2026-02-25 based on Siemens ProductCERT SSA-355557. Impact marked 'Misinformed' for affected product IDs CSAFPID-0006, CSAFPID-0002, CSAFPID-0003. No CVSS vector present in source.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-47757 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-47757

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

  • CVE-2024-47757 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-47757

    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.