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PatchSiren cyber security CVE debrief

CVE-2024-26764 Siemens CVE debrief

A vulnerability in the Linux kernel's asynchronous I/O (AIO) subsystem was resolved by restricting the kiocb_set_cancel_fn() function to I/O operations submitted via libaio. The fix prevents improper use of cancel functions on I/O requests that were not submitted through the legacy libaio interface. Siemens has identified this CVE as affecting certain industrial networking products running SINEC OS, which incorporates the vulnerable Linux kernel component. The vendor's assessment categorizes the impact as 'Misinformed' for affected products. Organizations should consult vendor guidance for patch availability and apply updates according to their risk management procedures.

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 industrial networking equipment including SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family, and RUGGEDCOM RST2428P switches. OT security teams managing SINEC OS deployments should prioritize vendor patch review.

Technical summary

The vulnerability exists in the Linux kernel's fs/aio subsystem where kiocb_set_cancel_fn() could be invoked on I/O requests not submitted via libaio. The resolution restricts this function to libaio-submitted I/O only, preventing potential misuse. Affected Siemens products include RUGGEDCOM RST2428P and SCALANCE X-family switches running SINEC OS. The vendor's threat assessment indicates 'Misinformed' impact categorization. No CVSS score is currently assigned in available sources.

Defensive priority

medium

Recommended defensive actions

  • Review Siemens ProductCERT advisory SSA-613116 for detailed product impact and patch status
  • Verify SINEC OS and affected SCALANCE/RUGGEDCOM product versions in your environment
  • Apply vendor-provided firmware updates when available per organizational change management
  • Monitor CISA ICS advisories for additional guidance on industrial control system security

Evidence notes

CVE published 2025-08-12 per CISA CSAF source. Modified 2026-02-25. Source indicates impact categorized as 'Misinformed' for affected Siemens products. Vendor confirmed via CSAF product tree.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-26764 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-26764

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

  • CVE-2024-26764 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-26764

    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.