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CVE-2021-0407

Estado: ModificadaMedia (6.7)—

En clk driver, se presenta una posible escritura fuera de límites debido a una comprobación de límites incorrecta. Esto podría conllevar a una escalada de privilegios local con los privilegios de ejecución System requeridos. No es requerida una interacción del usuario para su explotación. ID del Parche: ALPS05479659; ID del Problema: ALPS05479659.

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)

Google — Android

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-0407",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "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": 6.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 0.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@android.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "MT6739, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6833, MT6853, MT6853T, MT6873, MT6885, MT6889, MT6893",
          "versions": [
            {
              "status": "affected",
              "version": "Android 10.0, 11.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-08-18T15:15:07.313",
  "references": [
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/August-2021",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security@android.com"
    },
    {
      "url": "https://corp.mediatek.com/product-security-bulletin/August-2021",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In clk driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS05479659; Issue ID: ALPS05479659."
    },
    {
      "lang": "es",
      "value": "En clk driver, se presenta una posible escritura fuera de límites debido a una comprobación de límites incorrecta. Esto podría conllevar a una escalada de privilegios local con los privilegios de ejecución System requeridos. No es requerida una interacción del usuario para su explotación. ID del Parche: ALPS05479659; ID del Problema: ALPS05479659."
    }
  ],
  "lastModified": "2026-06-17T03:29:55.970",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D558D965-FA70-4822-A770-419E73BA9ED3"
            },
            {
              "criteria": "cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "109DD7FD-3A48-4C3D-8E1A-4433B98E1E64"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@android.com"
}