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CVE-2021-46791

Estado: ModificadaMedia (5.5)—

Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.

CVSS

Probabilidad de explotación (EPSS)

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 (1)

AMD — Milanpi Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-46791",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-46791",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-09T14:45:45.955007Z"
        }
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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          "product": "3rd Gen EPYC",
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  "published": "2023-01-11T08:15:13.270",
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      "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032",
      "tags": [
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      "source": "psirt@amd.com"
    },
    {
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-787"
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      "description": [
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient input validation during parsing of the System Management Mode (SMM) binary may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory that may result in a potential denial of service.\n"
    },
    {
      "lang": "es",
      "value": "Una validación de entrada insuficiente durante el análisis del binario del System Management Mode (SMM) puede permitir que un binario ejecutable de SMM creado con fines malintencionados corrompa la memoria de la aplicación del usuario de la Dynamic Root of Trust for Measurement (DRTM), lo que puede resultar en una posible denegación de servicio."
    }
  ],
  "lastModified": "2026-06-17T04:15:34.827",
  "configurations": [
    {
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  "sourceIdentifier": "psirt@amd.com"
}