VULNERABILITY INTELLIGENCE

CVE-2023-20555

CVSS score7.8 HIGH
EPSS probability0.32%
CISA KEVNot currently listed
Published2023-08-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references