CVE-2026-77234

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

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-w3vr-pr75-5hc6	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

14 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Validación de entrada incorrecta en FreeRTOS-Kernel anterior a la versión 11.3.1 podría permitir que una tarea sin privilegios en puertos con MPU habilitada ejecute código en un contexto de kernel privilegiado. Para remediar este problema, los usuarios deberían actualizar a la versión 11.3.1 o posterior.

Information

Published : 2026-08-21 18:16

Updated : 2026-10-14 19:10

NVD link : CVE-2026-77234

Mitre link : CVE-2026-77234

CVE.ORG link : CVE-2026-77234

JSON object : View

Products Affected

amazon

freertos

CWE

CWE-863

Incorrect Authorization

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