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CVE-2015-0800

Status: ModifiedMedium (5)—

The PRNG implementation in the DNS resolver in Mozilla Firefox (aka Fennec) before 37.0 on Android does not properly generate random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a related issue to CVE-2012-2808.

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)

Mozilla — Firefox

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2015-0800",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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        "userInteractionRequired": false
      }
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  "published": "2015-04-01T10:59:01.503",
  "references": [
    {
      "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-41.html",
      "tags": [
        "Vendor Advisory"
      ],
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    },
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      "url": "http://www.securitytracker.com/id/1031996",
      "source": "security@mozilla.org"
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1110212",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The PRNG implementation in the DNS resolver in Mozilla Firefox (aka Fennec) before 37.0 on Android does not properly generate random numbers for query ID values and UDP source ports, which makes it easier for remote attackers to spoof DNS responses by guessing these numbers, a related issue to CVE-2012-2808."
    },
    {
      "lang": "es",
      "value": "La implementación PRNG en el solucionador (resolver) DNS en Mozilla Firefox (también conocido como Fennec) anterior a 37.0 en Android no genera correctamente números aleatorios para los valores de identificadores de consultas y los puertos de fuentes UDP, lo que facilita a atacantes remotos falsificar las respuestas DNS mediante la adivinación de estos números, un problema relacionado con CVE-2012-2808."
    }
  ],
  "lastModified": "2026-06-17T00:20:55.300",
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              "versionEndIncluding": "36.0.4"
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}