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CVE-2018-3842

Estado: ModificadaAlta (8.8)—

An exploitable use of an uninitialized pointer vulnerability exists in the JavaScript engine in Foxit PDF Reader version 9.0.1.1049. A specially crafted PDF document can lead to a dereference of an uninitialized pointer which, if under attacker control, can result in arbitrary code execution. An attacker needs to trick the user to open a malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.

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)

Foxitsoftware — Foxit Reader

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-3842",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "talos-cna@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
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    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "confidentialityImpact": "HIGH"
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  "affected": [
    {
      "source": "talos-cna@cisco.com",
      "affectedData": [
        {
          "vendor": "Talos",
          "product": "Foxit",
          "versions": [
            {
              "status": "affected",
              "version": "Foxit Software Foxit PDF Reader 9.0.1.1049"
            }
          ]
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      ]
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  ],
  "published": "2018-04-19T19:29:00.233",
  "references": [
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      "url": "http://www.securityfocus.com/bid/103942",
      "tags": [
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        "Third Party Advisory",
        "VDB Entry"
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      "source": "talos-cna@cisco.com"
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      "tags": [
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        "VDB Entry"
      ],
      "source": "talos-cna@cisco.com"
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      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0525",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "source": "talos-cna@cisco.com"
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      "tags": [
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        "VDB Entry"
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      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0525",
      "tags": [
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-824"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An exploitable use of an uninitialized pointer vulnerability exists in the JavaScript engine in Foxit PDF Reader version 9.0.1.1049. A specially crafted PDF document can lead to a dereference of an uninitialized pointer which, if under attacker control, can result in arbitrary code execution. An attacker needs to trick the user to open a malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability."
    },
    {
      "lang": "es",
      "value": "Existe un uso explotable de un puntero no inicializado en el motor JavaScript en Foxit PDF Reader 9.0.1.1049. Un documento PDF especialmente manipulado puede conducir a una desreferencia de un puntero no inicializado que, si está bajo el control del atacante, puede resultar en la ejecución de código arbitrario. Un atacante necesita engañar a un usuario para que abra un archivo malicioso para desencadenar esta vulnerabilidad. Si la extensión del plugin del navegador está habilitada, visitar un sitio malicioso también puede desencadenar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T01:57:53.090",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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          "operator": "OR"
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  "sourceIdentifier": "talos-cna@cisco.com"
}