PatchSiren cyber security CVE debrief

CVE-2024-26593 Siemens CVE debrief

A vulnerability in the Linux kernel's i2c i801 driver affecting block process call transactions has been identified in Siemens industrial networking products. The issue was resolved in the upstream Linux kernel. Siemens has assessed the impact as 'Misinformed' for affected products, indicating the vulnerability does not pose a practical security risk to the identified product lines. The advisory was initially published on August 12, 2025, with subsequent revisions through February 25, 2026, to correct affected product listings and remove rejected CVEs. No CVSS score has been assigned by the source advisory.

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 and SCALANCE industrial networking equipment, particularly those in critical infrastructure sectors with OT/ICS environments. Security teams responsible for vulnerability management in industrial control systems should monitor this advisory for completeness, though the assessed impact suggests limited practical concern.

Technical summary

The vulnerability exists in the Linux kernel's i2c i801 driver, specifically in block process call transactions. The issue has been resolved in the upstream Linux kernel. Siemens products incorporating this component have been assessed with 'Misinformed' impact, indicating the theoretical vulnerability does not present a practical security concern for the identified product configurations. The affected product family includes RUGGEDCOM RST2428P and SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family devices running SINEC OS.

Defensive priority

low

Recommended defensive actions

Verify SINEC OS and SCALANCE device firmware versions against Siemens security advisory SSA-613116
Apply vendor-recommended updates when available per Siemens ProductCERT guidance
Follow CISA ICS recommended practices for defense-in-depth strategies
Monitor Siemens ProductCERT and CISA ICS advisories for future updates to this vulnerability

Evidence notes

Source: CISA CSAF advisory ICSA-25-226-15, derived from Siemens ProductCERT SSA-613116. Impact assessment: 'Misinformed' per source threats data. Vendor confirmed: Siemens. Affected product: RUGGEDCOM RST2428P (6GK6242-6PA00). Resolution: Fixed in Linux kernel i2c i801 driver.

Official resources

2025-08-12