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.
Published: 2021-12-07
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-31000 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.
History

Fri, 05 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Trustedfirmware
Trustedfirmware op-tee
CPEs cpe:2.3:o:linaro:op-tee:*:*:*:*:*:*:*:* cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*
Vendors & Products Linaro
Linaro op-tee
Trustedfirmware
Trustedfirmware op-tee

Subscriptions

Nxp I.mx 6ultralite
Trustedfirmware Op-tee
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T04:17:24.901Z

Reserved: 2021-11-22T00:00:00.000Z

Link: CVE-2021-44149

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-07T21:15:08.653

Modified: 2026-06-17T04:11:57.443

Link: CVE-2021-44149

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses