CVE-2026-77237

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-086-aws/	Vendor Advisory
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1	Release Notes
https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-9wvc-hqvx-5wf5	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:o:amazon:freertos:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-21 18:16

Updated : 2026-08-25 16:44

NVD link : CVE-2026-77237

Mitre link : CVE-2026-77237

CVE.ORG link : CVE-2026-77237

JSON object : View

Products Affected

amazon

freertos

CWE

CWE-125

Out-of-bounds Read

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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