PatchSiren cyber security CVE debrief

CVE-2024-42224 Siemens CVE debrief

A logic error in the Marvell 88E6xxx Distributed Switch Architecture (DSA) driver for Linux could lead to incorrect handling of empty lists. The vulnerability stems from an improper check when determining if a list is empty, potentially causing unexpected behavior in network switch operations. Siemens has identified this as affecting certain industrial networking products running SINEC OS, though the specific impact is characterized as 'Misinformed' in the advisory. The issue was originally published in the Linux kernel context and subsequently incorporated into Siemens' third-party component security assessment.

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 including RUGGEDCOM RST2428P switches and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family devices running SINEC OS. System administrators managing OT/ICS networks with Marvell-based switch hardware should monitor for vendor updates.

Technical summary

The vulnerability exists in the mv88e6xxx driver within the Linux kernel's Distributed Switch Architecture (DSA) subsystem. The driver performs an incorrect check when evaluating whether a list structure is empty, which can lead to improper state management during network switch operations. This affects Siemens industrial networking products utilizing SINEC OS that incorporate the vulnerable kernel component. The DSA subsystem is responsible for managing hardware switches through Linux network interfaces, making this relevant to embedded and industrial networking deployments.

Defensive priority

medium

Recommended defensive actions

Review Siemens ProductCERT advisory SSA-355557 for affected product configurations and patch availability
Verify SINEC OS version and installed kernel packages on affected Siemens industrial networking equipment
Apply vendor-provided firmware updates when available per Siemens maintenance procedures
Monitor network switch logs for anomalous behavior in DSA-managed ports
Implement network segmentation for critical industrial control systems as defense-in-depth measure

Evidence notes

The vulnerability description 'net: dsa: mv88e6xxx: wrong check on empty list' indicates a logic flaw in the Marvell 88E6xxx DSA driver's list handling. The CISA advisory ICSA-25-226-07 (republished 2026-02-25) tracks this as part of Siemens' third-party component security assessment for SINEC OS-based products. The threat category 'Misinformed' suggests the primary concern relates to incorrect state or information rather than direct code execution. The advisory underwent multiple revisions, with the most recent update (2026-02-25) reflecting republication based on Siemens ProductCERT SSA-355557.

Official resources

2025-08-12