CVE-2021-46779
Estado: ModificadaAlta (7.1)—
Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.18%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (3)
CWE
- CWE-787
- CWE-787
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-46779",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2021-46779",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-04-09T14:47:15.527346Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 1.8
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "psirt@amd.com",
"affectedData": [
{
"vendor": "AMD",
"product": "1st Gen EPYC",
"versions": [
{
"status": "affected",
"version": "various "
}
],
"platforms": [
"x86"
],
"packageName": "AGESA",
"defaultStatus": "unaffected"
},
{
"vendor": " AMD",
"product": "2nd Gen EPYC",
"versions": [
{
"status": "affected",
"version": "various "
}
],
"platforms": [
"x86"
],
"packageName": "AGESA",
"defaultStatus": "unaffected"
},
{
"vendor": "AMD",
"product": "3rd Gen EPYC",
"versions": [
{
"status": "affected",
"version": "various "
}
],
"platforms": [
"x86"
],
"packageName": "AGESA",
"defaultStatus": "unaffected"
}
]
}
],
"published": "2023-01-11T08:15:13.213",
"references": [
{
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032",
"tags": [
"Vendor Advisory"
],
"source": "psirt@amd.com"
},
{
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-787"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.\n"
},
{
"lang": "es",
"value": "Una validación de entrada insuficiente en la llamada al sistema SVC_ECC_PRIMITIVE en una aplicación de usuario comprometida o ABL puede permitir que un atacante corrompa la memoria del sistema operativo ASP (AMD Secure Processor), lo que puede provocar una posible pérdida de integridad y disponibilidad."
}
],
"lastModified": "2026-06-17T04:15:33.540",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amd:romepi_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "56013C45-044C-40B0-9503-7E3928602803",
"versionEndExcluding": "1.0.0.c"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:amd:romepi:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "B936879F-731E-4991-ACBB-16643F629B41"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amd:milanpi_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B11959F6-2A87-48A4-AD17-16A6B00C6BFA",
"versionEndExcluding": "1.0.0.4"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:amd:milanpi:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "1F64A4AA-A66B-4B2E-B8F1-F332E3945903"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:amd:naplespi_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BB1EE9F8-6AA6-48E1-A5C3-79A1FC70C821",
"versionEndExcluding": "1.0.0.g"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:amd:naplespi:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "9C479ABD-FE0C-4C08-B849-7BD516F03733"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "psirt@amd.com"
}