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CVE-2018-4240

Estado: ModificadaMedia (6.5)—💥 Exploit

Se ha descubierto un problema en algunos productos Apple. Las versiones de iOS anteriores a la 11.4, las versiones de macOS anteriores a la 10.13.5, las versiones de tvOS anteriores a la 11.4 y las versiones de watchOS anteriores a la 4.3.1 se han visto afectadas. El problema afecta al componente "Messages". Permite que atacantes remotos provoquen una denegación de servicio (cierre inesperado) mediante un mensaje manipulado.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (4)

Apple — Iphone OSApple — MAC OS XApple — TvosApple — Watchos

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-4240",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@apple.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  ],
  "published": "2018-06-08T18:29:02.383",
  "references": [
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      "url": "http://www.securitytracker.com/id/1041027",
      "tags": [
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        "VDB Entry"
      ],
      "source": "product-security@apple.com"
    },
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      "url": "https://support.apple.com/HT208848",
      "tags": [
        "Vendor Advisory"
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      "source": "product-security@apple.com"
    },
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      "url": "https://support.apple.com/HT208849",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Messages\" component. It allows remote attackers to cause a denial of service via a crafted message."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en algunos productos Apple. Las versiones de iOS anteriores a la 11.4, las versiones de macOS anteriores a la 10.13.5, las versiones de tvOS anteriores a la 11.4 y las versiones de watchOS anteriores a la 4.3.1 se han visto afectadas. El problema afecta al componente \"Messages\". Permite que atacantes remotos provoquen una denegación de servicio (cierre inesperado) mediante un mensaje manipulado."
    }
  ],
  "lastModified": "2026-06-17T01:58:38.853",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "618A2297-91F6-4533-B345-1620635CDA93",
              "versionEndExcluding": "11.4"
            },
            {
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              "vulnerable": true,
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              "versionEndExcluding": "4.3.1"
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          "operator": "OR"
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      ]
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  ],
  "sourceIdentifier": "product-security@apple.com"
}