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CVE-2024-26788 Siemens CVE debrief

A vulnerability in the Linux kernel's Freescale QDMA engine driver (fsl-qdma) was resolved by reordering initialization sequence: IRQ registration now occurs after register initialization. The flaw could lead to race conditions or undefined behavior if interrupts fired before hardware registers were properly configured. Siemens has assessed this CVE as 'Misinformed' for affected industrial networking products including RUGGEDCOM RST2428P and SCALANCE X-family switches running SINEC OS, indicating the vulnerability does not apply to these specific 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

Operators of Siemens industrial networking infrastructure using SINEC OS on RUGGEDCOM or SCALANCE devices; Linux kernel maintainers working with fsl-qdma driver on NXP/Freescale QorIQ platforms

Technical summary

The vulnerability exists in the Freescale QDMA (Queue-based Direct Memory Access) engine driver within the Linux kernel's dmaengine subsystem. The issue stems from interrupt request (IRQ) initialization occurring before hardware register initialization, creating a potential race condition window. The resolution reorders the initialization sequence to ensure registers are configured prior to IRQ registration. Siemens ProductCERT has evaluated this CVE against their industrial networking product portfolio and determined it to be 'Misinformed'—meaning the vulnerability as described does not apply to the specific product configurations listed, which include RUGGEDCOM RST2428P and multiple SCALANCE X-family switch families running SINEC OS. The CISA republication on 2026-02-25 reflects the latest vendor assessment based on Siemens SSA-613116 advisory.

Defensive priority

low

Recommended defensive actions

  • Verify SINEC OS version on affected Siemens devices; versions 3.1 and above are supported and maintained per vendor advisory
  • Review vendor security advisory SSA-613116 for definitive product impact assessment
  • Apply standard ICS defense-in-depth practices per CISA guidance for industrial control systems
  • Monitor CISA ICS advisories for any future reassessment of this CVE

Evidence notes

CISA CSAF advisory ICSA-25-226-15 (republished 2026-02-25) carries Siemens ProductCERT SSA-613116 assessment marking CVE-2024-26788 as 'Misinformed' for affected product IDs. Linux kernel fix description confirms driver initialization order correction. No CVSS score assigned in source corpus.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-26788 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-26788

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

  • CVE-2024-26788 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-26788

    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-25-226-15.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-613116.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-613116.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-15

    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.