VULNERABILITY INTELLIGENCE

CVE-2023-20596

CVSS score9.8 CRITICAL
EPSS probability1.04%
CISA KEVNot currently listed
Published2023-11-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.

Primary references