CVE-2023-20599

Published: Jun 10, 2025Modified: Jun 17, 2026Deferred

7.9

Vector

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

Exploitability: 1.5 / Impact: 5.8

Source: psirt@amd.com (Secondary)

Description

Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.

Related CWEs

CWE-1262

Improper Access Control for Register Interface

The product uses memory-mapped I/O registers that act as an interface to hardware functionality from software, but there is improper access control to those registers.

References (1)

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-7039.html

Source: psirt@amd.com

Timeline

No history available yet.