Description
Missing queue-set type validation in the queue-set selection system call in FreeRTOS-Kernel before V11.3.3 on MPU-enabled ports with queue sets enabled allows a local unprivileged task to write actor-controlled data beyond a pointer-sized object on the privileged kernel stack, affecting privileged memory across the MPU isolation boundary.
To remediate this issue, users should upgrade to FreeRTOS-Kernel V11.3.3, rebuild, and reflash affected firmware. Builds that do not enable queue sets are not affected.
Metrics
CVSS 3.1 6.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:NWeakness enumeration
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| FreeRTOS | FreeRTOS-Kernel | >= 7.4.0, <= 11.3.2 |
References
Timeline
- Published
- Oct 30, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Awaiting Analysis