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CVE-2024-21944

Estado: Pendiente de análisisMedia (5.3)—

Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity.

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).

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-21944",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-21944",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-11T13:27:57.865423Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@amd.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@amd.com",
      "affectedData": [
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ 7003 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "Milan PI 1.0.0.D"
            },
            {
              "status": "unaffected",
              "version": "SEV FW 1.55.22 (hex 1.37.16)"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ 9004 Series Processor",
          "versions": [
            {
              "status": "unaffected",
              "version": "Genoa PI 1.0.0.D"
            },
            {
              "status": "unaffected",
              "version": "SEV FW 1.55.38 (hex 1.37.26)"
            }
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-06-10T23:16:44.950",
  "references": [
    {
      "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3015.html",
      "source": "psirt@amd.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@amd.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper input validation for DIMM serial presence detect (SPD) metadata could allow an attacker with physical access, ring0 access on a system with a non-compliant DIMM, or control over the Root of Trust for BIOS update, to potentially overwrite guest memory resulting in loss of guest data integrity."
    },
    {
      "lang": "es",
      "value": "La validación de entrada incorrecta para los metadatos de detección de presencia serie (SPD) de DIMM podría permitir a un atacante con acceso físico, acceso ring0 en un sistema con un DIMM no conforme, o control sobre la Raíz de Confianza para la actualización del BIOS, sobrescribir potencialmente la memoria invitada, resultando en la pérdida de integridad de los datos invitados."
    }
  ],
  "lastModified": "2026-07-23T09:10:00.113",
  "sourceIdentifier": "psirt@amd.com"
}