PT-2026-46046 · Op Tee · Optee Os

Published 2026-06-03 · Updated 2026-06-03 · CVE-2026-45702

Mitre

CVSS v3.1

4.4

Medium

Base vector

AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

CVE-2026-45702

Affected Products

Optee Os

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-45702 · Security Note
• https://github.com/OP-TEE/optee_os/security/advisories/GHSA-86pj-8xgw-66p5 · Note