CVE-2021-44149
7.8 HIGHAn issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0
Published: 2021-12-07 · Last updated: 2026-06-05
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product |
|---|---|
| trustedfirmware | op-tee |
Description
An issue was discovered in Trusted Firmware OP-TEE Trusted OS through 3.15.0. The OPTEE-OS CSU driver for NXP i.MX6UL SoC devices lacks security access configuration for wakeup-related registers, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write operations on Secure World memory. This involves a v cycle.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-44149
- [Other]https://github.com/OP-TEE/optee_os/tags
- [Other]https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0002-OP-TEE_TrustZone_bypass_at_wakeup.txt
- [Other]https://github.com/OP-TEE/optee_os/tags
- [Other]https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0002-OP-TEE_TrustZone_bypass_at_wakeup.txt
Related CVEs
Same vendor
- CVE-2026-45702 — OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using t... (4.4 MEDIUM)
- CVE-2026-45614 — OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using t... (4.7 MEDIUM)
- CVE-2026-40290 — OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using t... (7.8 HIGH)
- CVE-2026-33662 — OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using t... (7.5 HIGH)
- CVE-2026-33317 — OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using t... (8.7 HIGH)