{"id":"CVE-2026-109587","revision":"ec7656e702ef4846abf8da72e3a7c9ce","records":[{"revision":"ec7656e702ef4846abf8da72e3a7c9ce","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109587","aliases":[],"title":"Incorrect authorization in the Arm Cortex-R82 MPU port in FreeRTOS-Kernel","description":"Incorrect authorization in the Arm Cortex-R82 (Armv8-R AArch64) MPU port in FreeRTOS-Kernel V11.3.0 and V11.3.1 might allow an unprivileged task on MPU-enabled builds to read and write privileged kernel memory outside the regions assigned to it, via a buffer argument passed to an MPU system call.\n\n\n\nTo remediate this issue, users should upgrade to version V11.3.2 or later.","state":0,"publishedAt":"2026-10-16T17:08:07.685+00:00","modifiedAt":"2026-10-20T15:16:10.707+00:00","affected":[{"ecosystem":"Vendor product","name":"FreeRTOS-Kernel","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FreeRTOS\",\n                    \"product\": \"FreeRTOS-Kernel\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"11.3.0\",\n                            \"lessThanOrEqual\": \"11.3.1\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.3,"severity":"CRITICAL"}],"references":["https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.2","https://aws.amazon.com/security/security-bulletins/2026-138-aws/","https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-pv9j-rq42-3fjc"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109587","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109587","identifiers":["CVE-2026-109587"]},"retained":false,"historicalAffected":[]}],"coverage":[]}