Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/2026-158-aws/
- https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3
- https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8
FAQ
What is CVE-2026-119086?
CVE-2026-119086 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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-...
How severe is CVE-2026-119086?
CVE-2026-119086 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-119086?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.