Security Advisory

CVE-2026-45702

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-03 17:55:18

Last updated 2026-06-04 12:54:26

Assigner GitHub_M

CVSS score not scored

State PUBLISHED

Description

OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 4.3.0 and prior to version 4.11.0, a type confusion vulnerability exists in OP-TEE OS when processing an FFA_MEM_SHARE request from the normal world. This only applies when OP-TEE is configured as an SPMC for S-EL0 SPs, that is, with `CFG_CORE_SEL1_SPMC=y` and `CFG_SECURE_PARTITION=y`. Version 4.11.0 fixes the issue.

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