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CVE-2026-77237

MEDIUM CVSS: 6.5 Published: 2026-08-21 Modified: 2026-08-25

Description

Missing queue-set type validation in xQueueAddToSet() in the FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports with configUSE_QUEUE_SETS=1 to read privileged kernel memory. To remediate this issue, users should upgrade to version 11.3.1 or later.

Affected Platforms

Amazon Freertos

Weakness Type

CWE-125, CWE-843

References