CVE-2024-21947

Published: Sep 6, 2025Modified: Jun 17, 2026Deferred

7.5

Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitability: 0.8 / Impact: 6.0

Source: psirt@amd.com (Secondary)

Description

Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially resulting in arbitrary code execution at the SMM level.

Related CWEs

CWE-1220

Insufficient Granularity of Access Control

The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets.

References (2)

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html

Source: psirt@amd.com

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html

Source: psirt@amd.com

Timeline

No history available yet.