PatchSiren cyber security CVE debrief

CVE-2024-40932 Siemens CVE debrief

A memory leak vulnerability exists in the drm/exynos/vidi driver's .get_modes() function. This issue affects the Linux kernel's Direct Rendering Manager (DRM) subsystem for Samsung Exynos SoCs. The vulnerability was published on 2025-08-12 and last modified on 2026-02-25. According to the source advisory, Siemens has assessed the impact as 'Misinformed' for affected product configurations, indicating this CVE may not represent a genuine security concern for the listed Siemens products. The advisory underwent multiple revisions, with the most recent update on 2026-02-25 reflecting republication based on Siemens ProductCERT SSA-355557 advisory. No CVSS score or severity rating is available in the source data.

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 running Linux systems with Samsung Exynos SoCs utilizing the DRM subsystem; operators of Siemens SCALANCE and RUGGEDCOM industrial networking equipment should verify current impact assessments per Siemens guidance.

Technical summary

The vulnerability is a memory leak in the .get_modes() function of the drm/exynos/vidi driver within the Linux kernel's DRM subsystem. This driver supports virtual display output on Samsung Exynos SoCs. The source advisory from CISA, based on Siemens ProductCERT guidance, categorizes the threat impact as 'Misinformed' for affected Siemens industrial networking products, suggesting the CVE may have been incorrectly associated with these products or does not represent a practical security vulnerability in that context. The underlying Linux kernel issue remains a valid memory leak defect that could affect systems using the Exynos DRM driver.

Defensive priority

low

Recommended defensive actions

Review Siemens ProductCERT advisory SSA-355557 for current product impact assessment
Verify whether Linux kernel DRM/Exynos components are deployed in your environment
Apply kernel updates from your Linux distribution vendor if Exynos DRM is in use
Monitor CISA ICS advisories for any future impact reassessment

Evidence notes

Source advisory ICSA-25-226-07 lists threat impact as 'Misinformed' for product IDs CSAFPID-0006, CSAFPID-0002, and CSAFPID-0003. Revision history shows the advisory was initially published 2025-08-12, with updates on 2026-02-12 (corrected affected products list), 2026-02-24 (clarified affected configurations, removed rejected CVEs), and 2026-02-25 (CISA republication based on Siemens SSA-355557).

Official resources

2025-08-12