FKIE_CVE-2023-20599
Vulnerability from fkie_nvd - Published: 2025-06-10 17:17 - Updated: 2026-06-17 05:30
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 7002 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "RomePI 100H SEV 0.24.19 [hex 00.18.13]"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 3000 Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "CastlePeakPI-SP3r3_1.0.0.F"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Threadripper\u2122 PRO 3000 WX Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "ChagallWSPI-sWRX8 1.0.0.C"
},
{
"status": "unaffected",
"version": "CastlePeakWSPI-sWRX8 1.0.0.H"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "PicassoPI-FP5_1.0.1.2c"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 7002 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbRomePI-SP3 1.0.0.B"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD EPYC\u2122 Embedded 7003 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbMilanPI-SP3 1.0.0.8"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded R1000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5 1211"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5 1211"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded R2000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedR2KPI-FP5 1006"
}
]
},
{
"defaultStatus": "affected",
"product": "AMD Ryzen\u2122 Embedded V1000 Series Processors",
"vendor": "AMD",
"versions": [
{
"status": "unaffected",
"version": "EmbeddedPI-FP5 1211 RC1"
}
]
}
],
"source": "psirt@amd.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP\u2019s 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."
},
{
"lang": "es",
"value": "Un control de acceso inadecuado a los registros en ASP puede permitir que un atacante privilegiado realice un acceso no autorizado a los registros del coprocesador criptogr\u00e1fico (CCP) de ASP desde x86, lo que genera una posible p\u00e9rdida de control del \u00edndice/puntero de la clave criptogr\u00e1fica y, por consiguiente, una p\u00e9rdida de integridad o confidencialidad."
}
],
"id": "CVE-2023-20599",
"lastModified": "2026-06-17T05:30:24.457",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 7.9,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.5,
"impactScore": 5.8,
"source": "psirt@amd.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-20599",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-06-11T04:01:37.861337Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-06-10T17:17:51.013",
"references": [
{
"source": "psirt@amd.com",
"url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-7039.html"
}
],
"sourceIdentifier": "psirt@amd.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-1262"
}
],
"source": "psirt@amd.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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