PT-2026-79426 · Unknown · Freertos Kernel

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CVE-2026-77237

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Published

2026-08-21

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Updated

2026-08-21

CVSS v3.1

8.4

High

VectorAV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
Name of the Vulnerable Software and Affected Versions FreeRTOS-Kernel versions prior to 11.3.1
Description Missing queue-set type validation in the xQueueAddToSet() function may allow an unprivileged task to read privileged kernel memory. This issue occurs on MPU-enabled ports when configUSE QUEUE SETS is set to 1. MPU (Memory Protection Unit) is a hardware component that monitors memory access to prevent unauthorized access to specific memory regions.
Recommendations Upgrade to version 11.3.1 or later.

Fix

Type Confusion

Out of bounds Read

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Weakness Enumeration

Related Identifiers

CVE-2026-77237

Affected Products

Freertos Kernel