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CVE-2025-9408

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CVE-2025-9408

Published: Nov 11, 2025

Modified: Nov 12, 2025

PUBLISHED

CVSS v3.1

8.2

HIGH

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.

VendorProductVersions

zephyrproject-rtos

Zephyr

affected
* - <= 4.2

Weaknesses (CWE)

CWE-270

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

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