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PatchSiren cyber security CVE debrief

CVE-2024-56623 Linux CVE debrief

A use-after-free vulnerability in the Linux kernel's qla2xxx SCSI driver can cause system crashes. The vulnerability was initially reported as affecting Siemens industrial networking products running SINEC OS, but subsequent analysis determined these products are not actually vulnerable—the issue was misattributed due to third-party component tracking. The advisory has been revised multiple times to correct the product scope.

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 running Linux systems with QLogic Fibre Channel SCSI adapters; security teams who may have flagged Siemens industrial networking products based on earlier advisory versions

Technical summary

The vulnerability exists in the qla2xxx QLogic Fibre Channel SCSI driver in the Linux kernel. A use-after-free condition can trigger system crashes with visible stack trace warnings. This is a kernel-level driver issue, not a vulnerability in Siemens product code. The initial advisory incorrectly associated this CVE with Siemens SINEC OS-based products (RUGGEDCOM RST2428P, SCALANCE XC/XR/XCM/XRM families); subsequent revisions moved all products to 'Known Not Affected' status. Organizations running Linux systems with QLogic Fibre Channel adapters should follow standard kernel security practices. Siemens product users do not require specific remediation for this CVE.

Defensive priority

low

Recommended defensive actions

  • Verify that affected product lists from earlier versions of this advisory are not used for vulnerability prioritization
  • Review kernel driver update status for qla2xxx if running Linux-based systems with QLogic Fibre Channel adapters
  • Apply standard kernel security updates through normal distribution channels for Linux systems using qla2xxx hardware
  • For Siemens SINEC OS deployments, no specific action is required for this CVE per corrected advisory

Evidence notes

The source advisory (ICSA-25-226-07) explicitly marks this CVE as 'Misinformed' in its impact assessment. The February 2026 revision history states: 'Corrected list of Affected Products and moved entries to Known Not Affected Products.' The affected product count is zero in the source metadata.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-56623 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-56623

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

  • CVE-2024-56623 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-56623

    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.