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PatchSiren cyber security CVE debrief

CVE-2023-52819 Siemens CVE debrief

A vulnerability in the Linux kernel's AMD GPU driver (drm/amd) could cause array-index-out-of-bounds errors on Polaris and Tonga graphics hardware. The issue was resolved in the Linux kernel. Siemens has assessed this CVE as applicable to certain industrial networking products running SINEC OS, which incorporates the affected Linux kernel components. The vulnerability is classified with an impact of 'Misinformed' in the source advisory, indicating potential for incorrect system behavior rather than direct security compromise. No CVSS score is available from the source data. The CVE was published on 2025-08-12 and last modified on 2026-02-25.

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 industrial networking equipment, particularly SCALANCE X-family switches and RUGGEDCOM devices running SINEC OS. System administrators responsible for Linux-based systems with AMD Polaris or Tonga GPUs should also monitor kernel updates.

Technical summary

The vulnerability exists in the Linux kernel's Direct Rendering Manager (DRM) subsystem for AMD GPUs. Specifically, the drm/amd driver contains an array-index-out-of-bounds condition that triggers UBSAN (Undefined Behavior Sanitizer) warnings on Polaris and Tonga GPU architectures. This class of issue can lead to undefined behavior, potential memory corruption, or system instability. The fix was committed to the Linux kernel to properly validate array indices before access. Siemens products incorporating the affected kernel components—specifically devices running SINEC OS—are identified as affected, with the vendor assessing impact as 'Misinformed' rather than direct code execution or privilege escalation.

Defensive priority

medium

Recommended defensive actions

  • Review Siemens ProductCERT advisory SSA-613116 for specific product impact and patch availability
  • Verify SINEC OS version on affected Siemens devices (SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family, RUGGEDCOM RST2428P)
  • Apply vendor-provided firmware updates when available per Siemens guidance
  • Monitor CISA ICS advisories for additional guidance on industrial control system security practices

Evidence notes

Source: CISA CSAF advisory ICSA-25-226-15, republished from Siemens ProductCERT SSA-613116. The advisory identifies affected products including RUGGEDCOM RST2428P and SCALANCE X-family devices running SINEC OS. The Linux kernel fix addresses UBSAN (Undefined Behavior Sanitizer) array-index-out-of-bounds conditions specific to AMD Polaris and Tonga GPU architectures.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-52819 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-52819

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

  • CVE-2023-52819 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-52819

    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.