CVE-2023-20599
CVSS Score
7.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-1262 |
| Vendor | amd |
| Product | amd epyc™ 7002 series processors |
| Published | Jun 10, 2025 |
| Last Updated | Feb 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
AMD / AMD EPYC™ 7002 Series Processors
All versions affected AMD / AMD Ryzen™ Threadripper™ 3000 Processors
All versions affected AMD / AMD Ryzen™ Threadripper™ PRO 3000 WX Processors
All versions affected AMD / AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD EPYC™ Embedded 7002 Series Processors
All versions affected AMD / AMD EPYC™ Embedded 7003 Series Processors
All versions affected AMD / AMD Ryzen™ Embedded R1000 Series Processors
All versions affected AMD / AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
All versions affected AMD / AMD Ryzen™ Embedded R2000 Series Processors
All versions affected AMD / AMD Ryzen™ Embedded V1000 Series Processors
All versions affected