CVE-2025-9408
Userspace privilege escalation vulnerability on Cortex M
- State
- Published
- Severity
- 8.2 High
- Published
- Nov 11, 2025
- Updated
- Oct 13, 2026
- Reserved
- Aug 25, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H | zephyr |
Weaknesses
- CWE-270 Privilege Context Switching Error
Affected Products
| Product | Versions |
|---|---|
Zephyrzephyrproject-rtos |
|
References
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