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PatchSiren cyber security CVE debrief

CVE-2024-50040 Siemens CVE debrief

A vulnerability in the Linux kernel's igb (Intel Gigabit Ethernet) driver could allow an attacker to cause a denial-of-service condition. The issue occurs when the driver incorrectly brings the device back up after a non-fatal error, potentially leading to system instability or network disruption. This affects Siemens industrial networking products that incorporate the vulnerable kernel component.

Vendor
Siemens
Product
RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS
MEDIUM 6.2
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 infrastructure, particularly in critical infrastructure and manufacturing environments. System administrators responsible for RUGGEDCOM and SCALANCE device fleets. OT security teams monitoring for Linux kernel vulnerabilities in embedded industrial systems.

Technical summary

The vulnerability exists in the igb (Intel Gigabit Ethernet) network driver within the Linux kernel. When a non-fatal error occurs, the driver incorrectly attempts to bring the network device back up, which can lead to undefined behavior and potential system instability. This is classified as CWE-390: Detection of Error Condition Without Action. The CVSS 3.1 vector indicates a local attack vector with low attack complexity, requiring no privileges or user interaction, resulting in high availability impact. Affected Siemens products include RUGGEDCOM RST2428P (6GK6242-6PA00), SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, and SCALANCE XCM-/XRM-/XCH-/XRH-300 family. Remediation involves updating to firmware version V3.2 or later.

Defensive priority

medium

Recommended defensive actions

  • Apply vendor-provided firmware updates to V3.2 or later for affected RUGGEDCOM and SCALANCE products
  • For SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, consult Siemens ProductCERT advisory SSA-355557 for specific configuration guidance
  • Implement network segmentation for industrial control systems to limit exposure of affected devices
  • Monitor for anomalous network behavior or unexpected device resets on affected systems
  • Follow CISA ICS recommended practices for defense-in-depth strategies

Evidence notes

The vulnerability is documented in CISA ICS advisory ICSA-25-226-07, which references Siemens ProductCERT advisory SSA-355557. The issue was resolved in the Linux kernel by preventing the igb driver from bringing the device up after non-fatal errors. Siemens has confirmed affected products include RUGGEDCOM RST2428P and SCALANCE networking device families.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-50040 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-50040

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

  • CVE-2024-50040 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-50040

    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.