PatchSiren cyber security CVE debrief

CVE-2024-47669 Siemens CVE debrief

A state management vulnerability in the nilfs2 filesystem's log writing error path. The issue occurs when the log writing function encounters an error, potentially leading to improper state management. This vulnerability affects Siemens industrial networking products running SINEC OS, specifically the RUGGEDCOM RST2428P and SCALANCE X-family switches. CISA published advisory ICSA-25-226-07 on August 12, 2025, with subsequent updates through February 25, 2026, to clarify affected product configurations and remove rejected CVEs from the advisory. Siemens has issued ProductCERT advisory SSA-355557 with remediation guidance. The vulnerability is classified as 'Misinformed' impact in the CISA CSAF data, indicating potential for incorrect system state information.

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 RUGGEDCOM RST2428P switches, SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family, or SCALANCE XCM-/XRM-/XCH-/XRH-300 family switches in industrial control system environments. Critical infrastructure operators in energy, manufacturing, and transportation sectors using these devices should prioritize vendor guidance review.

Technical summary

The vulnerability exists in the nilfs2 (New Implementation of a Log-structured File System) log writing function's error handling path. When log writing encounters an error, improper state management may occur, potentially affecting filesystem integrity. This Linux kernel filesystem component is incorporated into Siemens SINEC OS, which powers industrial networking equipment including RUGGEDCOM RST2428P switches and SCALANCE X-family managed switches. The vulnerability requires local access to exploit. Siemens has clarified affected configurations through multiple advisory updates, with the February 25, 2026 revision providing definitive affected product scope.

Defensive priority

medium

Recommended defensive actions

Review Siemens ProductCERT advisory SSA-355557 for detailed affected product configurations and patch availability
Verify SINEC OS version on affected RUGGEDCOM and SCALANCE devices against vendor guidance
Apply vendor-provided firmware updates when available per Siemens security advisory
Implement network segmentation for affected industrial control systems per CISA recommended practices
Monitor CISA ICS advisories for additional updates to ICSA-25-226-07

Evidence notes

Source: CISA CSAF advisory ICSA-25-226-07 (government_advisory_source). Vendor confirmed: Siemens ProductCERT SSA-355557. CVE published 2025-08-12, modified 2026-02-25. Advisory revision history shows four updates, with the latest on 2026-02-25 clarifying affected configurations for SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family. CWE-20 (Improper Input Validation) referenced.

Official resources

2025-08-12