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CVE-2024-26664 Siemens CVE debrief

CVE-2024-26664 is an out-of-bounds memory access vulnerability in the Linux kernel's hwmon (coretemp) subsystem. The vulnerability was resolved in the Linux kernel, and Siemens has assessed its impact on affected industrial networking products. According to the CISA CSAF advisory ICSA-25-226-15, Siemens has categorized the impact as 'Misinformed' for affected products including the RUGGEDCOM RST2428P and SCALANCE X-family devices. The advisory was initially published on August 12, 2025, and most recently updated on February 25, 2026, to incorporate changes from Siemens ProductCERT advisory SSA-613116. This vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.

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 industrial networking equipment, particularly RUGGEDCOM RST2428P switches and SCALANCE X-family devices (XC-300/XR-300/XC-400/XR-500WG/XR-500 and XCM-/XRM-/XCH-/XRH-300 families) in industrial control system (ICS) environments. Security teams responsible for OT/ICS infrastructure patch management and vulnerability assessment programs should prioritize review of vendor-specific impact assessments.

Technical summary

CVE-2024-26664 addresses an out-of-bounds memory access vulnerability in the Linux kernel's hardware monitoring (hwmon) coretemp driver. The vulnerability has been resolved in the upstream Linux kernel. Siemens has evaluated this CVE against their industrial networking product portfolio, including RUGGEDCOM RST2428P and SCALANCE X-family devices running SINEC OS. Per the CISA CSAF advisory ICSA-25-226-15, Siemens has classified the impact as 'Misinformed' for affected products, indicating their assessment of actual vulnerability exposure differs from the original CVE classification. The advisory has been updated multiple times, most recently on February 25, 2026, to align with Siemens ProductCERT advisory SSA-613116. Organizations should consult the Siemens ProductCERT advisory for specific patch and mitigation guidance applicable to their deployed devices.

Defensive priority

medium

Recommended defensive actions

  • Review Siemens ProductCERT advisory SSA-613116 for detailed product-specific guidance
  • Verify SINEC OS and firmware versions on affected SCALANCE and RUGGEDCOM devices
  • Apply vendor-provided patches or updates as specified in Siemens security advisories
  • Monitor CISA ICS advisories for additional guidance on industrial control system security

Evidence notes

The vulnerability description indicates a resolved Linux kernel hwmon (coretemp) out-of-bounds memory access issue. Siemens has assessed impact as 'Misinformed' per the threats section of the source CSAF document. The advisory revision history shows four updates, with the latest incorporating Siemens ProductCERT SSA-613116 advisory changes.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-26664 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-26664

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

  • CVE-2024-26664 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-26664

    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.