PatchSiren cyber security CVE debrief

CVE-2024-26606 Siemens CVE debrief

This CVE addresses a vulnerability in the Linux kernel's binder driver where epoll threads were not properly signaled when self-work became available. The issue has been resolved in the kernel. Siemens has identified this vulnerability as affecting certain industrial networking products running SINEC OS, specifically the RUGGEDCOM RST2428P and SCALANCE X-family switches. The vulnerability was initially published on August 12, 2025, with subsequent advisory updates through February 25, 2026, including corrections to affected product lists and removal of rejected CVEs. CISA republished the advisory based on Siemens ProductCERT SSA-613116. No CVSS score or severity rating is available in the source data. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog.

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 SCALANCE X-family switches or RUGGEDCOM RST2428P devices in industrial environments; OT security teams managing SINEC OS deployments; infrastructure operators relying on Linux-based industrial networking equipment.

Technical summary

The vulnerability exists in the Linux kernel's binder driver, which failed to properly signal epoll threads when self-work became available. This could lead to threading issues in systems utilizing the binder IPC mechanism. The fix ensures proper signaling of epoll threads. Siemens industrial networking products running SINEC OS incorporate the affected kernel component.

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 on affected SCALANCE and RUGGEDCOM devices
Monitor CISA ICS advisories for additional guidance on industrial control system security
Implement network segmentation for industrial control systems per CISA recommended practices

Evidence notes

Source indicates vulnerability resolved in Linux kernel binder driver. Siemens advisory ICSA-25-226-15 (republished 2026-02-25) identifies affected industrial control products. Advisory revision history shows multiple updates correcting product impact assessments.

Official resources

2025-08-12