VULNERABILITY INTELLIGENCE

CVE-2021-46795

CVSS score4.7 MEDIUM
EPSS probability0.14%
CISA KEVNot currently listed
Published2023-01-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.

Weakness classification

  • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

Primary references