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PatchSiren cyber security CVE debrief

CVE-2023-52838 Siemens CVE debrief

A resource leak vulnerability in the Linux kernel's imsttfb framebuffer driver probe function was resolved. The issue could lead to resource exhaustion during device initialization. Siemens has assessed this CVE as 'Misinformed' for affected industrial networking products, indicating the vulnerability does not apply to their specific product configurations. The advisory was initially published on August 12, 2025, and most recently updated on February 25, 2026, to reflect corrections to affected product listings and removal of rejected CVEs. No CVSS score has been assigned.

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 RST2428P or SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family and XCM-/XRM-/XCH-/XRH-300 family industrial Ethernet switches should verify their exposure status through the vendor advisory. While the underlying Linux kernel vulnerability exists, Siemens has assessed it as not applicable to their products. General Linux users with IMS Twin Turbo framebuffer hardware should ensure kernel updates are applied.

Technical summary

The vulnerability exists in the imsttfb (IMS Twin Turbo framebuffer) driver within the Linux kernel's fbdev subsystem. A resource leak in the driver's probe function could occur during device initialization, potentially leading to resource exhaustion. The issue was resolved in the Linux kernel. Siemens has evaluated this CVE against their RUGGEDCOM RST2428P and SCALANCE X-family industrial Ethernet switches and determined the vulnerability to be 'Misinformed'—indicating it does not apply to their product configurations or the affected code path is not present/exploitable in their implementations.

Defensive priority

low

Recommended defensive actions

  • Verify current firmware version on affected Siemens RUGGEDCOM RST2428P and SCALANCE X-family devices
  • Review Siemens ProductCERT SSA-613116 advisory for definitive product impact assessment
  • Apply vendor-recommended updates when available per organizational patch management policy
  • Monitor CISA ICS advisories for subsequent updates to ICSA-25-226-15

Evidence notes

CVE published 2025-08-12; modified 2026-02-25. Siemens ProductCERT SSA-613116 advisory cited as authoritative source. CISA CSAF advisory ICSA-25-226-15 republished with updates through February 25, 2026. Threat assessment category 'impact' marked as 'Misinformed' for product IDs CSAFPID-0001, CSAFPID-0003, CSAFPID-0004.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-52838 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-52838

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

  • CVE-2023-52838 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-52838

    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-25-226-15.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-613116.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-613116.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-15

    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.