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Status published
High
CVE-2023-20599
Improper register access control in ASP may allow a privileged...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Affected Software
AMD EPYC™ 7002 Series Processors, AMD Ryzen™ Threadripper™ 3000 Processors, AMD Ryzen™ Threadripper™ PRO 3000 WX Processors, AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD EPYC™ Embedded 7002 Series Processors, AMD EPYC™ Embedded 7003 Series Processors, AMD Ryzen™ Embedded R1000 Series Processors, AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD Ryzen™ Embedded R2000 Series Processors, AMD Ryzen™ Embedded V1000 Series Processors
Vulnerable Versions:
RomePI 100H SEV 0.24.19 [hex 00.18.13], CastlePeakPI-SP3r3_1.0.0.F, ChagallWSPI-sWRX8 1.0.0.C, CastlePeakWSPI-sWRX8 1.0.0.H, PicassoPI-FP5_1.0.1.2c, EmbRomePI-SP3 1.0.0.B, EmbMilanPI-SP3 1.0.0.8, EmbeddedPI-FP5 1211, EmbeddedR2KPI-FP5 1006, EmbeddedPI-FP5 1211 RC1
Timeline
Official Publish:
June 10th, 2025
Last Modified:
February 26th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Weaknesses (CWE)
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.