VULNERABILITY INTELLIGENCE

CVE-2021-44149

CVSS score7.8 HIGH
EPSS probability0.35%
CISA KEVNot currently listed
Published2021-12-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • nvd@nist.gov: NVD-CWE-Other

Primary references