CVE-2026-119086
Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-843 CWE-121 |
| Vendor | freertos |
| Product | freertos-kernel |
| Published | Oct 30, 2026 |
| Last Updated | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
FreeRTOS / FreeRTOS-Kernel
7.4.0 ≤ 11.3.2