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CVE-2014-4859

Estado: ModificadaMedia (6.8)—

Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows physically proximate attackers to bypass intended access restrictions via crafted data.

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)

Tianocore — Edk2

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2014-4859",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.8,
          "attackVector": "PHYSICAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.9
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Phoenix Technologies Ltd.",
          "product": "SCT3",
          "versions": [
            {
              "status": "affected",
              "version": "before 5/23/2014"
            }
          ]
        },
        {
          "vendor": "American Megatrends Incorporated (AMI)",
          "product": "BIOS",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-01-31T16:15:10.300",
  "references": [
    {
      "url": "http://www.kb.cert.org/vuls/id/552286",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/552286",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows physically proximate attackers to bypass intended access restrictions via crafted data."
    },
    {
      "lang": "es",
      "value": "Un desbordamiento de enteros en la fase Drive Execution Environment (DXE) en la funcionalidad Capsule Update en la implementación de UEFI en EDK2, permite a atacantes físicamente próximos omitir las restricciones de acceso previstas por medio de datos diseñados."
    }
  ],
  "lastModified": "2026-06-17T00:10:42.200",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tianocore:edk2:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "97ADE942-4E59-42FE-A941-6923025B04D5"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "cret@cert.org"
}