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CVE-2025-52536

Estado: AplazadaMedia (6.7)—

Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of 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).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

AMD — SEV FirmwareAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-52536",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-52536",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-10T21:11:49.506703Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "psirt@amd.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 6.7,
          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "HIGH",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@amd.com",
      "affectedData": [
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ 9004 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "GenoaPI 1.0.0.G"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ 7003 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "MilanPI 1.0.0.H"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ 9005 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "TurinPI 1.0.0.5"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ 8004 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "GenoaPI 1.0.0.G"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ Embedded 7003 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbMilanPI-SP3 v9 1.0.0.C"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed \"Genoa\")",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbGenoaPI-SP5 1.0.0.B"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ Embedded 9005 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbTurinPI-SP5_1.0.0.1"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed \"Bergamo\")",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbGenoaPI-SP5 1.0.0.B"
            }
          ],
          "defaultStatus": "affected"
        },
        {
          "vendor": "AMD",
          "product": "AMD EPYC™ Embedded 8004 Series Processors",
          "versions": [
            {
              "status": "unaffected",
              "version": "EmbGenoaPI-SP5 1.0.0.B"
            }
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-02-10T20:16:46.320",
  "references": [
    {
      "url": "https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3023.html",
      "source": "psirt@amd.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@amd.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1231"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity."
    },
    {
      "lang": "es",
      "value": "Prevención inadecuada de la modificación del bit de bloqueo en el firmware SEV podría permitir a un atacante privilegiado degradar el firmware, lo que podría resultar en una pérdida de integridad."
    }
  ],
  "lastModified": "2026-06-17T09:36:38.047",
  "sourceIdentifier": "psirt@amd.com"
}