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CVE-2024-26926 Siemens CVE debrief

CVE-2024-26926 is a Linux kernel vulnerability in the Android Binder driver, specifically within the `binder_get_object()` function. The issue stems from a regression introduced in commit `6d98eb95b450` (binder: avoid potential data leakage when copying txn), which unintentionally removed an offset alignment check when replacing `binder_alloc_copy_from_buffer()` calls with `copy_from_user()`. Without this alignment verification, malformed binder transactions could trigger complications during object unwinding. The vulnerability was resolved by reintroducing an explicit offset alignment check in `binder_get_object()`. This check had previously existed but was removed in commit `7a67a39320df` due to perceived redundancy. The fix restores this defensive validation to prevent potential memory safety issues in the Binder IPC mechanism.

Vendor
Siemens
Product
RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS
NONE 7.8
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 running Siemens industrial networking equipment with SINEC OS, particularly SCALANCE and RUGGEDCOM product families. System administrators managing Linux-based embedded systems in industrial control environments. Security teams responsible for OT/ICS infrastructure patch management. Android device manufacturers and custom ROM maintainers using affected kernel versions.

Technical summary

This vulnerability exists in the Linux kernel's Binder Inter-Process Communication (IPC) driver. The `binder_get_object()` function lacked an explicit offset alignment check after a code refactoring in commit `6d98eb95b450` replaced `binder_alloc_copy_from_buffer()` calls with direct `copy_from_user()` usage. The missing alignment verification could lead to complications when unwinding binder objects, potentially affecting memory safety. The fix reintroduces the alignment check that was previously present but removed in commit `7a67a39320df`. Affected industrial products include Siemens SINEC OS, SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, SCALANCE XCM-/XRM-/XCH-/XRH-300 family, and RUGGEDCOM RST2428P. Siemens has rated this vulnerability with a CVSS 3.1 score of 0.0 (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:N), indicating negligible direct impact, though the underlying kernel issue represents a defense-in-depth improvement.

Defensive priority

medium

Recommended defensive actions

  • Apply vendor-provided updates to V3.1 or later for affected Siemens SINEC OS and SCALANCE/RUGGEDCOM products per Siemens ProductCERT advisory SSA-613116
  • Review Linux kernel Binder subsystem configurations on affected embedded systems
  • Monitor for kernel updates from device vendors that incorporate the upstream Binder fix
  • Implement network segmentation for industrial control systems running affected firmware versions
  • Follow CISA ICS recommended practices for defense-in-depth strategies

Evidence notes

The vulnerability description indicates this is a regression fix in the Linux kernel's Binder driver. The fix was committed to address an alignment check that was inadvertently removed during a prior security hardening effort (commit 6d98eb95b450). The explicit alignment check in `binder_get_object()` prevents complications during object unwinding that could arise from unaligned offsets. Siemens ProductCERT has assessed this vulnerability as affecting SINEC OS and related industrial network infrastructure products, with a vendor fix available in V3.1 or later.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-26926 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-26926

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

  • CVE-2024-26926 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-26926

    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.