CVE-2026-109587EPSS p2.8%
CVE-2026-109587CVE-2026-109587
Description
Incorrect authorization in the Arm Cortex-R82 (Armv8-R AArch64) MPU port in FreeRTOS-Kernel V11.3.0 and V11.3.1 might allow an unprivileged task on MPU-enabled builds to read and write privileged kernel memory outside the regions assigned to it, via a buffer argument passed to an MPU system call.
To remediate this issue, users should upgrade to version V11.3.2 or later.
Scoring
| CVSS | 8.8 () |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 0.14% probability of exploitation · percentile 2.8% · 2026-10-17T12:00:28Z |
| Last modified | 2026-10-16 |