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CVE-2010-3171

Status: ModifiedMedium (5.8)—💥 Exploit

The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.10 through 3.5.11, 3.6.4 through 3.6.8, and 4.0 Beta1 uses a random number generator that is seeded only once per document object, which makes it easier for remote attackers to track a user, or trick a user into acting upon a spoofed pop-up message, by calculating the seed value, related to a "temporary footprint" and an "in-session phishing attack." NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-5913.

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (1)

Mozilla — Firefox

CWEs

References

Raw JSON (NVD)

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  "id": "CVE-2010-3171",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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  "published": "2010-09-15T20:00:02.493",
  "references": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-310"
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  "descriptions": [
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      "lang": "en",
      "value": "The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.10 through 3.5.11, 3.6.4 through 3.6.8, and 4.0 Beta1 uses a random number generator that is seeded only once per document object, which makes it easier for remote attackers to track a user, or trick a user into acting upon a spoofed pop-up message, by calculating the seed value, related to a \"temporary footprint\" and an \"in-session phishing attack.\" NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-5913."
    },
    {
      "lang": "es",
      "value": "La función Math.random en la implementación JavaScript en Mozilla Firefox v3.5.10 hasta v3.5.11, v3.6.4 hasta v3.6.8, y v4.0 Beta1 usa un generador de números aleatorios que se siembra una sola vez por documento objeto, lo cual facilita a los atacantes remotos el seguimiento de un usuario, o engañar a un usuario a que actúe sobre un mensaje pop-up falso, mediante el cálculo del valor de la semilla, relacionado con una \"temporary footprint\" y una \"in-session phishing attack\". NOTA: esta vulnerabilidad existe debido a una solución incompleta de CVE-2008-5913."
    }
  ],
  "lastModified": "2026-06-16T23:22:17.543",
  "configurations": [
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