CRITICAL 9.3 NVD
CVE-2026-109587
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
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.
References
- https://aws.amazon.com/security/security-bulletins/2026-138-aws/
- https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.2
- https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-pv9j-rq42-3fjc
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-10-16 via NVD.
Risk Timeline
CVE Disclosed2026-10-16 · -1 days ago
Remediation Resources
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