PatchSiren cyber security CVE debrief

CVE-2024-26805 Siemens CVE debrief

This CVE addresses a kernel information leak after free vulnerability in the Linux kernel's netlink subsystem, specifically within the skb_datagram_iter function. The vulnerability was resolved with a fix to prevent information disclosure from freed memory. Siemens has identified this CVE as affecting multiple industrial networking product families including RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family devices running SINEC OS. The CISA advisory ICSA-25-226-15, published August 12, 2025 and most recently updated February 25, 2026, incorporates Siemens ProductCERT advisory SSA-613116. The advisory has undergone multiple revisions, including corrections to affected product listings and removal of rejected CVEs in February 2026. Organizations should consult vendor guidance for patch availability and apply defense-in-depth strategies for industrial control systems.

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 SINEC OS-based industrial networking infrastructure, including critical infrastructure operators using SCALANCE and RUGGEDCOM devices. OT security teams responsible for patch management in industrial environments.

Technical summary

The vulnerability exists in the Linux kernel's netlink implementation where skb_datagram_iter could access freed memory, resulting in kernel information leakage. This affects Siemens industrial networking products running SINEC OS, including RUGGEDCOM RST2428P and SCALANCE XC/XR series switches. The fix resolves the use-after-free condition to prevent information disclosure.

Defensive priority

medium

Recommended defensive actions

Review Siemens ProductCERT advisory SSA-613116 for affected product versions and patch availability
Apply vendor-provided firmware updates for SINEC OS when available
Implement network segmentation for industrial control systems per CISA recommended practices
Monitor CISA ICS advisories for additional guidance on affected Siemens products

Evidence notes

Vulnerability description sourced from CVE record and CISA CSAF advisory ICSA-25-226-15. Siemens ProductCERT SSA-613116 identified as canonical source. Advisory revision history shows multiple updates through February 25, 2026, including product list corrections and CVE removals.

Official resources

2025-08-12