PatchSiren

PatchSiren cyber security CVE debrief

CVE-2024-50024 Siemens CVE debrief

CVE-2024-50024 is a medium-severity vulnerability (CVSS 5.5) affecting Siemens industrial networking products, specifically the RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 and XCM-/XRM-/XCH-/XRH-300 families. The vulnerability, described as an unsafe loop on a list in the networking component, was published on August 12, 2025, and last modified on February 25, 2026. The issue stems from third-party components in SINEC OS, as detailed in CISA advisory ICSA-25-226-07, which was republished based on Siemens ProductCERT advisory SSA-355557. The vulnerability allows a local attacker with low privileges to cause a denial of service condition (availability impact: high) with no confidentiality or integrity impact. The attack vector is local, requires low attack complexity, and no user interaction. Siemens has provided vendor fixes: affected products should be updated to version 3.2 or later. For the SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, additional configuration guidance is available in the advisory. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog, and no known ransomware campaign use has been reported.

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 operating Siemens industrial networking infrastructure, particularly in critical infrastructure sectors such as energy, manufacturing, and transportation. Security teams responsible for OT/ICS environments, network administrators managing RUGGEDCOM and SCALANCE devices, and compliance officers tracking CVE remediation for industrial control systems should prioritize this update.

Technical summary

The vulnerability exists in the networking stack (net component) of SINEC OS, where an unsafe loop on a list can be triggered by a local attacker with low privileges. The CVSS 3.1 score of 5.5 reflects local attack vector, low attack complexity, low privileges required, no user interaction, and high availability impact with no confidentiality or integrity impact. The vulnerability affects three product families: RUGGEDCOM RST2428P (6GK6242-6PA00), SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, and SCALANCE XCM-/XRM-/XCH-/XRH-300 family. Siemens has released firmware version 3.2 or later to address this issue. The CISA advisory was initially published on August 12, 2025, with subsequent updates in February 2026 to correct affected product listings and clarify configurations.

Defensive priority

medium

Recommended defensive actions

  • Apply vendor-provided firmware updates to version 3.2 or later for affected RUGGEDCOM RST2428P and SCALANCE XCM-/XRM-/XCH-/XRH-300 family devices
  • Review Siemens SSA-355557 advisory for specific configuration guidance regarding SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family remediation
  • Implement network segmentation for industrial control systems to limit local access to affected devices
  • Follow CISA ICS recommended practices for defense-in-depth strategies
  • Monitor Siemens ProductCERT and CISA ICS advisories for future updates to this vulnerability

Evidence notes

CVE published 2025-08-12; modified 2026-02-25. Source: CISA CSAF advisory ICSA-25-226-07, republished based on Siemens SSA-355557. Affected products confirmed via CSAF product tree: RUGGEDCOM RST2428P (6GK6242-6PA00), SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family. CVSS 3.1 vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. Remediation: update to V3.2 or later.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-50024 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-50024

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

  • CVE-2024-50024 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-50024

    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.