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CVE-2024-50262 Siemens CVE debrief

CVE-2024-50262 is a medium-severity (CVSS 5.5) out-of-bounds write vulnerability in the Linux kernel's BPF (Berkeley Packet Filter) subsystem, specifically within the `trie_get_next_key()` function. The vulnerability was resolved in the upstream Linux kernel. Siemens has identified this CVE as affecting multiple industrial networking products running SINEC OS, including the RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family devices. The vulnerability requires local access with low privileges and can result in high availability impact through denial of service. Siemens has released vendor fixes, with updates to V3.2 or later versions recommended for affected products. The CISA advisory ICSA-25-226-07 was initially published on August 12, 2025, and most recently updated on February 25, 2026, to reflect corrections to the affected products list and republication based on Siemens ProductCERT advisory SSA-355557. This CVE is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.

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 those deploying RUGGEDCOM RST2428P switches or SCALANCE XC/XR/XCM/XRM/XCH/XRH series devices in industrial control system environments. Security teams responsible for OT/ICS asset management and patch deployment should prioritize this vulnerability due to its potential for localized denial of service in critical infrastructure networks.

Technical summary

CVE-2024-50262 is an out-of-bounds write vulnerability in the Linux kernel's BPF (Berkeley Packet Filter) subsystem, specifically in the `trie_get_next_key()` function. The vulnerability allows a local attacker with low privileges to cause a denial of service condition. The CVSS 3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) indicates a local attack vector with low attack complexity, low privileges required, no user interaction, and high availability impact. The vulnerability affects Siemens industrial networking products utilizing SINEC OS, including RUGGEDCOM RST2428P (6GK6242-6PA00), SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, and SCALANCE XCM-/XRM-/XCH-/XRH-300 family devices. The upstream Linux kernel fix resolves the out-of-bounds write condition in the BPF LPM trie map implementation.

Defensive priority

medium

Recommended defensive actions

  • Apply vendor-provided updates to V3.2 or later for affected Siemens RUGGEDCOM and SCALANCE products per product-specific guidance
  • Review Siemens ProductCERT advisory SSA-355557 for detailed affected product configurations and remediation steps
  • Implement network segmentation for industrial control systems to limit local access vectors
  • Follow CISA ICS recommended practices for defense-in-depth strategies
  • Monitor for additional vendor guidance regarding SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family configurations

Evidence notes

CVE description confirms out-of-bounds write in Linux kernel BPF trie_get_next_key() function. CISA CSAF advisory ICSA-25-226-07 identifies affected Siemens products. CVSS vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H indicates local attack vector with availability impact. Remediation guidance specifies vendor fix via update to V3.2 or later.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-50262 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-50262

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

  • CVE-2024-50262 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-50262

    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.