PatchSiren cyber security CVE debrief

CVE-2024-45006 Siemens CVE debrief

A NULL pointer dereference vulnerability exists in the Linux kernel's xHCI (eXtensible Host Controller Interface) driver, specifically affecting Panther Point chipsets during full-speed USB device re-enumeration. This flaw can trigger a denial-of-service condition when a connected USB device undergoes re-enumeration at full speed. Siemens has identified this vulnerability as affecting multiple industrial networking products running SINEC OS, including RUGGEDCOM RST2428P switches and SCALANCE XC/XR/XCM/XRM/XCH/XRH family devices. The vulnerability requires local access with low privileges and no user interaction, making it exploitable by authenticated users with physical or logical access to the system.

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 including RUGGEDCOM RST2428P switches and SCALANCE family devices in manufacturing, energy, transportation, and critical infrastructure sectors. System administrators responsible for OT/ICS network security and patch management should prioritize assessment and remediation.

Technical summary

The vulnerability resides in the xHCI driver handling of Panther Point USB host controllers. A NULL pointer dereference occurs during full-speed device re-enumeration, leading to system crash and denial of service. The CVSS 3.1 score of 5.5 (MEDIUM) reflects local attack vector, low attack complexity, low privileges required, no user interaction, and high availability impact with no confidentiality or integrity impact. Affected Siemens products incorporate vulnerable Linux kernel versions in their SINEC OS firmware.

Defensive priority

medium

Recommended defensive actions

Apply vendor-supplied firmware updates to V3.2 or later for 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 physical access controls to prevent unauthorized local access to affected industrial networking equipment
Monitor for unexpected USB device re-enumeration events in system logs as potential indicators of exploitation attempts
Apply defense-in-depth strategies for industrial control systems per CISA recommended practices

Evidence notes

CVE published 2025-08-12 per CISA CSAF advisory ICSA-25-226-07. Modified 2026-02-25 with republication based on Siemens ProductCERT SSA-355557. CVSS 3.1 vector: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. CWE-20 (Improper Input Validation) classification per source references.

Official resources

2025-08-12