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CVE-2024-52332 Siemens CVE debrief

A vulnerability in the Linux kernel's igb (Intel Gigabit Ethernet) driver could allow invalid memory access when the driver fails to initialize. The issue occurs because the dca_notifier (Direct Cache Access notifier) is not unregistered if pci_register_driver() fails during module initialization. This can lead to use-after-free or invalid memory access when the notifier is subsequently called. The vulnerability has a CVSS 3.1 score of 5.5 (MEDIUM) with a local attack vector requiring low privileges. Siemens has identified affected products in their industrial networking equipment lines and provided vendor fixes.

Vendor
Siemens
Product
RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS
MEDIUM 5.5
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 Siemens industrial networking equipment including RUGGEDCOM RST2428P and SCALANCE switch families that incorporate the affected Linux kernel igb driver. System administrators of industrial control systems and operational technology networks should prioritize patching to prevent potential denial of service conditions that could impact network availability.

Technical summary

The igb_init_module() function in the Linux kernel's Intel Gigabit Ethernet (igb) driver fails to unregister the dca_notifier when pci_register_driver() fails. This leaves a dangling notifier registration that can be invoked after driver resources have been freed or are in an invalid state, resulting in invalid memory access. The vulnerability is triggered during driver initialization failure conditions and requires local access to the system. The primary impact is denial of service (availability) through system instability or crash.

Defensive priority

medium

Recommended defensive actions

  • Apply vendor-provided updates to V3.2 or later for affected Siemens RUGGEDCOM RST2428P and SCALANCE XCM-/XRM-/XCH-/XRH-300 family devices per vendor guidance
  • For SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, consult Siemens ProductCERT advisory SSA-355557 for specific configuration and patch guidance
  • Implement defense-in-depth strategies for industrial control systems including network segmentation and access controls
  • Monitor for anomalous system behavior or crashes that could indicate exploitation attempts
  • Review and apply CISA ICS recommended practices for securing industrial control systems

Evidence notes

CVE published 2025-08-12 per official CVE record. CISA ICS advisory ICSA-25-226-07 published same date. Siemens ProductCERT advisory SSA-355557 referenced as authoritative vendor source. Advisory modified 2026-02-25 with republication based on updated Siemens guidance. CVSS vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H indicates local attack, low complexity, low privileges required, no user interaction, with high availability impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-52332 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-52332

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

  • CVE-2024-52332 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-52332

    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.