CVE-2023-20555

7.8HIGH

Key Information

Vendor
AMD
Status
Ryzen™ 3000 Series Desktop Processors “Matisse” AM4
Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4
Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” AM4
Ryzen™ 7000 Series Processors “Raphael”
Vendor
CVE Published:
8 August 2023

Summary

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.

Affected Version(s)

Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 <= various

Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4 <= various

Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics “Cezanne” AM4 <= various

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.