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PatchSiren cyber security CVE debrief

CVE-2024-26790 Linux CVE debrief

A vulnerability in the Linux kernel's Freescale QDMA engine driver (fsl-qdma) could cause System-on-Chip (SoC) hangs when performing 16-byte unaligned memory reads. The issue was resolved in the Linux kernel. Siemens has assessed this CVE as 'Misinformed' for its affected industrial networking products, indicating the vulnerability does not apply to these specific product configurations.

Vendor
Linux
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 industrial networking equipment (SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family, RUGGEDCOM RST2428P) running SINEC OS should verify their security posture against vendor guidance, though this specific CVE is assessed as not applicable to these products.

Technical summary

The vulnerability exists in the Freescale QDMA (Queue-based Direct Memory Access) engine driver within the Linux kernel. Specifically, 16-byte unaligned read operations could trigger SoC hangs. The fix ensures proper handling of unaligned memory access in the DMA engine. While the underlying kernel vulnerability is real, Siemens has determined that their specific product implementations (SINEC OS-based devices including SCALANCE and RUGGEDCOM families) are not affected by this issue, marking it as 'Misinformed' in their security assessment.

Defensive priority

low

Recommended defensive actions

  • Verify SINEC OS and SCALANCE/RUGGEDCOM device firmware versions against vendor security advisory SSA-613116
  • Apply Siemens-recommended patches or updates if applicable to your product deployment
  • Follow CISA ICS recommended practices for defense-in-depth strategies
  • Monitor Siemens ProductCERT advisories for any future reassessment of this CVE

Evidence notes

The source advisory (ICSA-25-226-15) explicitly categorizes the impact of this CVE as 'Misinformed' for all listed Siemens product IDs (CSAFPID-0001, CSAFPID-0003, CSAFPID-0004). The vulnerability description indicates a kernel-level DMA engine issue that was resolved upstream. The advisory was republished by CISA on 2026-02-25 based on Siemens ProductCERT SSA-613116.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-26790 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-26790

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

  • CVE-2024-26790 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-26790

    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.