CVE-2026-77235

High

Open

TLP:CLEAR

Missing privilege check in SecureContext_FreeContext in FreeRTOS-Kernel

NVD CVE.org

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Description

Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to version 11.3.1 or later.

Details

CVSS Score: 7.3
CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Confidence: 90%
Published: Aug 21, 2026
Last Modified: Aug 21, 2026

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