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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.

PUBLISHED Reserved 2025-08-25 | Published 2025-11-11 | Updated 2025-11-12 | Assigner zephyr




HIGH: 8.2CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Problem types

Privilege Context Switching Error

Product status

Default status
unaffected

* (git)
affected

References

github.com/...zephyr/security/advisories/GHSA-3r6j-5mp3-75wr

cve.org (CVE-2025-9408)

nvd.nist.gov (CVE-2025-9408)

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