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CVE-2018-3842

Status: ModifiedHigh (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

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Foxitsoftware — Foxit Reader

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-3842",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
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          "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",
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          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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  "published": "2018-04-19T19:29:00.233",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "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": [
        {
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  "sourceIdentifier": "talos-cna@cisco.com"
}