CVE-2025-9408
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-11

Last updated on: 2025-11-11

Assigner: Zephyr Project

Description
System call entry on Cortex M (and possibly R and A, but I think not) has a race which allows very practical privilege escalation for malicious userspace processes.
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Meta Information
Published
2025-11-11
Last Modified
2025-11-11
Generated
2026-06-16
AI Q&A
2025-11-11
EPSS Evaluated
2026-06-15
NVD
CVE-2025-9408
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
zephyrproject zephyr *
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-270 The product does not properly manage privileges while it is switching between different contexts that have different privileges or spheres of control.
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Executive Summary

This vulnerability is a race condition in the system call entry on Cortex M processors (and possibly Cortex R and A). It allows malicious userspace processes to escalate their privileges in a practical way.

Impact Analysis

The vulnerability can lead to privilege escalation, meaning a malicious userspace process could gain higher privileges than intended. This can compromise the confidentiality, integrity, and availability of the system.

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