PatchSiren cyber security CVE debrief

CVE-2024-56572 Siemens CVE debrief

CVE-2024-56572 is a memory leak vulnerability in the Allegro DVT media platform driver, specifically within the `allocate_buffers_internal()` function. The issue occurs when a buffer allocated within a loop is not properly released under exception paths, leading to resource exhaustion over time. This vulnerability affects Siemens industrial networking products running SINEC OS, including the RUGGEDCOM RST2428P and SCALANCE switch families. The CVSS 3.1 score of 5.5 (MEDIUM) reflects local attack vector requirements and high availability impact, with no confidentiality or integrity impact. The vulnerability was published on August 12, 2025, with subsequent modifications through February 25, 2026, including corrections to affected product lists and advisory republication based on Siemens ProductCERT updates.

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 RUGGEDCOM RST2428P, SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500, or SCALANCE XCM-/XRM-/XCH-/XRH-300 industrial networking equipment in critical infrastructure environments, including utilities, manufacturing, and transportation sectors.

Technical summary

The vulnerability exists in the `allocate_buffers_internal()` function of the Allegro DVT media platform driver. When buffer allocation occurs within a loop and an exception path is triggered, the buffer may not be released, causing a memory leak. This can lead to resource exhaustion and denial of service conditions over time. The attack requires local access with low privileges and no user interaction. The vulnerability is classified under CWE-401 (Missing Release of Memory after Effective Lifetime).

Defensive priority

medium

Recommended defensive actions

Apply vendor-provided firmware updates to V3.2 or later for affected RUGGEDCOM RST2428P and SCALANCE XCM-/XRM-/XCH-/XRH-300 family devices
For SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, consult Siemens ProductCERT advisory SSA-355557 for specific configuration guidance and patch availability
Implement defense-in-depth strategies for industrial control systems per CISA recommended practices
Monitor system resource utilization for signs of memory exhaustion that may indicate exploitation attempts
Restrict local access to affected devices to authorized personnel only, as the vulnerability requires local attack vector

Evidence notes

Vulnerability description sourced from CISA CSAF advisory ICSA-25-226-07, which references Siemens ProductCERT advisory SSA-355557. Affected products confirmed through CSAF product tree with high confidence. CVSS vector and remediation details extracted from official advisory sources.

Sources and references

Verified primary and authoritative sources

CVE-2024-56572 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2024-56572

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2024-56572 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2024-56572

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.