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CVE-2024-46702 Siemens CVE debrief

CVE-2024-46702 describes a Linux kernel issue in the Thunderbolt subsystem where XDomain connections are not properly marked as unplugged when a router is removed. The vulnerability was published on 2025-08-12 and last modified on 2026-02-25. CISA republished this advisory on 2026-02-25 based on Siemens ProductCERT SSA-355557. The source advisory (ICSA-25-226-07) underwent multiple revisions, including corrections to affected products and removal of rejected CVEs in February 2026. Siemens RUGGEDCOM RST2428P and SCALANCE switch families are mentioned in the product context, though the threat data indicates these products are marked as 'Misinformed' regarding impact. No CVSS score or severity is available in the source data. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog.

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 RUGGEDCOM and SCALANCE industrial network infrastructure with Thunderbolt connectivity, as well as Linux systems utilizing Thunderbolt XDomain networking features.

Technical summary

The vulnerability exists in the Linux kernel's Thunderbolt subsystem. When a Thunderbolt router is physically removed, XDomain connections (used for device-to-device networking over Thunderbolt cables) are not properly marked as unplugged. This can lead to stale connection states and potential resource management issues. The fix involves properly signaling XDomain unplug events when router removal is detected.

Defensive priority

low

Recommended defensive actions

  • Review Siemens ProductCERT advisory SSA-355557 for product-specific guidance
  • Verify Thunderbolt/XDomain configurations on affected industrial systems
  • Apply vendor-provided firmware updates when available
  • Follow CISA ICS recommended practices for defense-in-depth strategies

Evidence notes

Source: CISA CSAF advisory ICSA-25-226-07, republished 2026-02-25 based on Siemens SSA-355557. Threat category marked as 'Misinformed' for affected product IDs. No CVSS vector or score provided in source.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-46702 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-46702

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

  • CVE-2024-46702 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-46702

    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.