{"id":"CVE-2026-77234","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-77234","summary":"Improper input validation in FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports to execute code in privileged kernel context. To remediate this issue,…","details":"Improper input validation in FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports to execute code in privileged kernel context. To remediate this issue, users should upgrade to version 11.3.1 or later.","published":"2026-08-21T18:16:51.507","modified":"2026-08-21T18:16:51.507","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://aws.amazon.com/security/security-bulletins/2026-086-aws/"},{"type":"WEB","url":"https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-21T18:16:51.507"}}