Vulnerability in Nxp I.mx 6
CVE-2021-36133
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/f-secure-foundry/advisories/blob/master/Security_Advisory-Ref_FSC-HW… (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-36133?
- CVE-2021-36133 is a high-severity vulnerability in Nxp I.mx 6, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.1/10. Published 2021-12-07.
- How severe is CVE-2021-36133?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2021-36133 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.