{"id":"CVE-2026-119086","aliases":["EUVD-2026-114246","GHSA-56j9-g43f-8g6v"],"status":"published","title":"Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel","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.","severity":{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00155,"percentile":0.04717,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-843"],"published":"2026-10-30T17:33:51Z","modified":"2026-11-04T02:47:26Z","products":[{"vendor":"freertos","product":"freertos-kernel"}],"references":[{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3","tags":["release-notes","patch","fix"]},{"url":"https://aws.amazon.com/security/security-bulletins/2026-158-aws/","tags":["vendor-advisory","advisory"]},{"url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119086.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119086","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-119086","title":"Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel","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.","status":"published","published":"2026-10-30T17:33:51.535Z","modified":"2026-10-30T20:04:33.929Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-843","CWE-121"],"updated_at":"2026-11-02T14:20:10.143031Z"}],"euvd":[{"id":"EUVD-2026-114246","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.","status":"published","published":"2026-10-30T17:33:51Z","modified":"2026-10-30T20:04:33Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","level":"high"}],"updated_at":"2026-11-02T16:59:01.965054Z"}],"nvd":[{"id":"CVE-2026-119086","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.","status":"published","published":"2026-10-30T18:17:25.05Z","modified":"2026-10-30T20:17:06.21Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-121","CWE-843"],"updated_at":"2026-11-02T14:13:05.268617Z"}],"osv":[{"id":"CVE-2026-119086","title":"Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel","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.","status":"published","published":"2026-10-30T17:33:51.535Z","modified":"2026-11-05T21:15:30.213759866Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","level":"high"}],"cwes":["CWE-121","CWE-843"],"updated_at":"2026-11-05T22:01:21.792402Z"}]}}