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CVE-2009-4630

Estado: ModificadaMedia (5)—

Mozilla Necko, as used in Firefox, SeaMonkey, and other applications, performs DNS prefetching of domain names contained in links within local HTML documents, which makes it easier for remote attackers to determine the network location of the application's user by logging DNS requests. NOTE: the vendor disputes the significance of this issue, stating "I don't think we necessarily need to worry about that case."

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 (3)

Mozilla — FirefoxMozilla — SeamonkeyMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2009-4630",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2010-01-29T18:30:00.887",
  "references": [
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=453403",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=492196",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=453403",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=492196",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mozilla Necko, as used in Firefox, SeaMonkey, and other applications, performs DNS prefetching of domain names contained in links within local HTML documents, which makes it easier for remote attackers to determine the network location of the application's user by logging DNS requests.  NOTE: the vendor disputes the significance of this issue, stating \"I don't think we necessarily need to worry about that case.\""
    },
    {
      "lang": "es",
      "value": "Mozilla Necko usado en Firefox, SeaMonkey y otras aplicaciones, realiza una pre-consulta sobre los nombres de dominio en enlaces dentro de los documentos HTML locales, lo que facilita a atacantes remotos el determinar la localización de red de las aplicaciones de usuario mediante peticiones de loggin DNS. NOTA: el fabricante cuestiona la importancia de esta cuestión, diciendo que \"No cree necesario preocuparse por ese tema\"."
    }
  ],
  "lastModified": "2026-06-16T23:14:03.403",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "14E6A30E-7577-4569-9309-53A0AF7FE3AC"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "138701FB-929A-4683-B41F-CB014ACFE44A"
            },
            {
              "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D5C8E657-3049-4462-98F6-296C60BC8C5C"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "vendorComments": [
    {
      "comment": "Not vulnerable. This issue did not affect the versions of Firefox, Thunderbird, or Seamonkey as shipped with Red Hat Enterprise Linux 3, 4,\nor 5.",
      "lastModified": "2010-02-01T00:00:00",
      "organization": "Red Hat"
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}