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Status published
High
CVE-2025-9408
Userspace privilege escalation vulnerability on Cortex M
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
zephyrproject-rtos
View all reports →Affected Software
Zephyr
Vulnerable Versions:
*
Timeline
Official Publish:
November 11th, 2025
Last Modified:
November 12th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.