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CVE-2024-56597 Siemens CVE debrief

CVE-2024-56597 is a vulnerability in the JFS (Journaled File System) implementation affecting Siemens industrial networking products. The flaw involves a shift-out-of-bounds condition in the dbSplit function that occurs when dmt_budmin is less than zero, potentially causing errors in subsequent operations. The fix adds an early validation check in dbAllocCtl to return an error before the problematic condition can propagate. This vulnerability was published on August 12, 2025, and the advisory was most recently updated on February 25, 2026, to reflect republication based on Siemens ProductCERT SSA-355557. The affected products include RUGGEDCOM RST2428P and SCALANCE networking device families running SINEC OS. Notably, the CISA advisory marks the impact assessment as 'Misinformed,' indicating potential discrepancies in initial severity characterization. No CVSS score or severity rating is currently assigned in the source data. Organizations should consult the Siemens ProductCERT advisory for patch availability and apply updates according to vendor guidance.

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

Organizations operating Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family, or RUGGEDCOM RST2428P industrial networking equipment; OT security teams managing SINEC OS deployments; infrastructure operators in critical manufacturing, energy, and transportation sectors relying on these network components.

Technical summary

The vulnerability exists in the JFS (Journaled File System) dbSplit function where a negative dmt_budmin value causes shift-out-of-bounds behavior. The remediation adds input validation in dbAllocCtl to detect and reject invalid dmt_budmin values before they reach dbSplit, preventing the error condition from propagating to later processing stages.

Defensive priority

medium

Recommended defensive actions

  • Review Siemens ProductCERT SSA-355557 for detailed product impact and patch status
  • Verify SINEC OS versions on affected SCALANCE and RUGGEDCOM devices
  • Apply vendor-provided firmware updates when available
  • Monitor CISA ICS advisories for additional guidance

Evidence notes

Source indicates 'Misinformed' impact assessment; no CVSS score assigned. Advisory updated 2026-02-25 based on Siemens SSA-355557.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-56597 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-56597

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

  • CVE-2024-56597 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-56597

    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.