CVE-2023-20599: AMD Athlon 3000 Series Mobile Processors With Radeon Graphics

High severity, CVSS 7.9. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• AMD AMD Athlon 3000 Series Mobile Processors With Radeon Graphics
• AMD AMD Epyc 7002 Series Processors
• AMD AMD Epyc Embedded 7002 Series Processors
• AMD AMD Epyc Embedded 7003 Series Processors
• AMD AMD Ryzen 3000 Series Mobile Processors With Radeon Graphics
• AMD AMD Ryzen Embedded r1000 Series Processors
• AMD AMD Ryzen Embedded r2000 Series Processors
• AMD AMD Ryzen Embedded v1000 Series Processors
• AMD AMD Ryzen Threadripper 3000 Processors
• AMD AMD Ryzen Threadripper Pro 3000 Wx Processors

Published 2025-06-10. Last modified 2026-06-17.