CVE-2023-4020

CriticalCVSS 9.1/10Last modified Jun 17, 2026

Description

An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-125 CWE-787

Affected software

No affected versions have been published.

Timeline

Published: Dec 15, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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