CVE-2023-20578

Published Aug 13, 2024

Last updated 2 months ago

Overview

Description
A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow an attacker with ring0 privileges and access to the BIOS menu or UEFI shell to modify the communications buffer potentially resulting in arbitrary code execution.
Source
psirt@amd.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
6.4
Impact score
5.9
Exploitability score
0.5
Vector string
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-367

Social media

Hype score
Not currently trending

Configurations