VULNERABILITY INTELLIGENCE

CVE-2023-4020

CVSS score9 CRITICAL
EPSS probability0.57%
CISA KEVNot currently listed
Published2023-12-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

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.

Weakness classification

  • product-security@silabs.com: CWE-125
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references