PatchSiren cyber security CVE debrief

CVE-2024-43882 Linux CVE debrief

CVE-2024-43882 is a HIGH severity vulnerability (CVSS 7.0) affecting Siemens industrial networking products, specifically the RUGGEDCOM RST2428P (6GK6242-6PA00) and SCALANCE switch families. The vulnerability involves improper input validation (CWE-20) in the exec function, which may allow execution to gain unintended privileges. The vulnerability was published on August 12, 2025, and the advisory was subsequently modified on February 25, 2026, to correct affected product listings and clarify configuration details for the SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family. This CVE is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, and there is no indication of known ransomware campaign use. The vulnerability stems from third-party components in SINEC OS, Siemens' network management operating system. Organizations operating affected Siemens industrial switches should consult the vendor's security advisory for patch availability and apply updates according to their change management procedures.

Vendor: Linux
Product: RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS: HIGH 7
CISA KEV: Not listed in stored evidence
Original CVE published: 2024-04-09
Original CVE updated: 2026-05-14
Advisory published: 2024-04-09
Advisory updated: 2026-05-14

Who should care

Organizations operating Siemens industrial networking infrastructure, particularly in critical infrastructure sectors (energy, manufacturing, transportation), as well as OT security teams responsible for patch management of SCALANCE and RUGGEDCOM devices.

Technical summary

The vulnerability exists in the exec function implementation within third-party components integrated into SINEC OS, potentially allowing execution contexts to gain unintended privileges. The affected products include industrial Ethernet switches used in critical infrastructure environments. The advisory history indicates iterative refinement of affected product scope, with the February 2026 update removing multiple rejected CVEs and clarifying specific affected configurations within the SCALANCE product families.

Defensive priority

HIGH

Recommended defensive actions

Review Siemens ProductCERT security advisory SSA-355557 for detailed affected product configurations and patch availability
Verify inventory of affected Siemens switch models including RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family devices
Apply vendor-provided firmware updates to affected devices following organizational change management procedures
Implement network segmentation for industrial control systems per CISA recommended practices
Monitor vendor security communications for additional updates to this advisory

Evidence notes

CVE published 2025-08-12; advisory modified 2026-02-25 with corrections to affected product list and configuration clarifications. Not in KEV. Source: CISA CSAF advisory ICSA-25-226-07, cross-referenced with Siemens ProductCERT SSA-355557.

Official resources

2025-08-12