CVE-2023-31343

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

11/02/2025

Last modified:

23/09/2025

Description

Improper input validation in the SMM handler may allow a privileged attacker to overwrite SMRAM, potentially leading to arbitrary code execution.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3009.html
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-4008.html
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5004.html