{"id":"CVE-2026-119086","published":"2026-10-30T18:17:25.050","lastModified":"2026-10-30T20:17:06.210","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.\n\n\n\nTo 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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","cwes":["CWE-121","CWE-843"],"vendors":[],"products":[],"references":[{"url":"https://aws.amazon.com/security/security-bulletins/2026-158-aws/","tags":[]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3","tags":[]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v","tags":[]}],"exploitRefs":[{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3","tags":[]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v","tags":[]}],"hasPoc":true,"ai":null}