Vulnerability Intelligence Report
CVE-2023-20599
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.
No Active Exploit Signals
CVSS Base Score
7.9
HIGH
Exploitability:1.5
Impact Score:5.8
EPSS Probability:0.16%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-1262 ↗CWE-1262 Register Interface Allows Software Access to Sensitive Data or Security Settings
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | AMD EPYC™ 7002 Series Processors | RomePI 100H SEV 0.24.19 [hex 00.18.13] (unaffected) |
| AMD | AMD Ryzen™ Threadripper™ 3000 Processors | CastlePeakPI-SP3r3_1.0.0.F (unaffected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000 WX Processors | ChagallWSPI-sWRX8 1.0.0.C (unaffected), CastlePeakWSPI-sWRX8 1.0.0.H (unaffected) |
| AMD | AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics | PicassoPI-FP5_1.0.1.2c (unaffected) |
| AMD | AMD EPYC™ Embedded 7002 Series Processors | EmbRomePI-SP3 1.0.0.B (unaffected) |
| AMD | AMD EPYC™ Embedded 7003 Series Processors | EmbMilanPI-SP3 1.0.0.8 (unaffected) |
| AMD | AMD Ryzen™ Embedded R1000 Series Processors | EmbeddedPI-FP5 1211 (unaffected) |
| AMD | AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics | EmbeddedPI-FP5 1211 (unaffected) |
| AMD | AMD Ryzen™ Embedded R2000 Series Processors | EmbeddedR2KPI-FP5 1006 (unaffected) |
| AMD | AMD Ryzen™ Embedded V1000 Series Processors | EmbeddedPI-FP5 1211 RC1 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.157%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2022-10-27T18:53:39 |
| Published | 2025-06-10T16:15:03 |
| Patch Date | 2025-11-21 |
| Last Updated | 2026-02-26T17:51:02 |
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