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.
History

Thu, 13 Nov 2025 09:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 12 Nov 2025 13:00:00 +0000

Type Values Removed Values Added
First Time appeared Zephyrproject-rtos
Zephyrproject-rtos zephyr
Vendors & Products Zephyrproject-rtos
Zephyrproject-rtos zephyr

Tue, 11 Nov 2025 15:45:00 +0000

Type Values Removed Values Added
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.
Title Userspace privilege escalation vulnerability on Cortex M
Weaknesses CWE-270
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: zephyr

Published: 2025-11-11T15:34:58.719Z

Updated: 2025-11-12T20:02:52.616Z

Reserved: 2025-08-25T06:44:35.788Z

Link: CVE-2025-9408

cve-icon Vulnrichment

Updated: 2025-11-12T14:54:07.390Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-11-11T16:15:40.917

Modified: 2025-11-12T16:19:34.210

Link: CVE-2025-9408

cve-icon Redhat

No data.