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CVE-2021-1807

Estado: ModificadaMedia (5.5)—

Se abordó un problema de comprobación con un saneo de entrada mejorado. Este problema se corrigió en iOS versión 14.5 e iPadOS versión 14.5, watchOS versión 7.4. Un usuario local puede ser capaz de escribir archivos arbitrarios

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 (3)

Apple — IpadosApple — Iphone OSApple — Watchos

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-1807",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:C/A:N",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "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": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "Apple",
          "product": "iOS and iPadOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "14.5",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Apple",
          "product": "watchOS",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "7.4",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-09-08T15:15:09.397",
  "references": [
    {
      "url": "https://support.apple.com/en-us/HT212317",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212324",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@apple.com"
    },
    {
      "url": "https://support.apple.com/en-us/HT212317",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/en-us/HT212324",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4. A local user may be able to write arbitrary files."
    },
    {
      "lang": "es",
      "value": "Se abordó un problema de comprobación con un saneo de entrada mejorado. Este problema se corrigió en iOS versión 14.5 e iPadOS versión 14.5, watchOS versión 7.4. Un usuario local puede ser capaz de escribir archivos arbitrarios"
    }
  ],
  "lastModified": "2026-06-17T03:32:35.750",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3EAAE2C1-EF21-4567-99F1-335D1EF955D1",
              "versionEndExcluding": "14.5"
            },
            {
              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C1E12568-6F17-458F-8216-3D6DBC8F6DEE",
              "versionEndExcluding": "14.5"
            },
            {
              "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CFFFE00C-0AA6-4F60-ABF4-E68877BFD8F8",
              "versionEndExcluding": "7.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@apple.com"
}