CVE-2021-36133
HIGH
7.1
CVSS Score
Published: December 7, 2021 at 08:42 PM UTC
Updated: June 17, 2026 at 03:58 AM UTC
1 product affected across 1 vendorOp Tee· also runs on 6 platforms
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Severity
HIGH7.1
Exploit prediction
EPSS 0.3%
Description
The OPTEE-OS CSU driver for NXP i.MX SoC devices lacks security access configuration for several models, resulting in TrustZone bypass because the NonSecure World can perform arbitrary memory read/write operations on Secure World memory. This involves a DMA capable peripheral.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
All versions
nxp-i-mx-6 (environment) · nxp-i-mx-6solox (environment) · nxp-i-mx-6ull (environment) · nxp-i-mx-6ulz (environment) · nxp-i-mx-7ds (environment) · nxp-i-mx6sx (environment)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HWSEC-VR2021-0001-OP-TEE_TrustZone_bypass.txtCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-732
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