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CVE-2011-3866

Estado: ModificadaMedia (4.3)—

Mozilla Firefox before 7.0 and SeaMonkey before 2.4 do not properly restrict availability of motion data events, which makes it easier for remote attackers to read keystrokes by leveraging JavaScript code running in a background tab.

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 (2)

Mozilla — FirefoxMozilla — Seamonkey

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-3866",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-09-29T00:55:03.013",
  "references": [
    {
      "url": "http://www.mozilla.org/security/announce/2011/mfsa2011-45.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.usenix.org/events/hotsec11/tech/tech.html#Cai",
      "tags": [
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      "source": "cve@mitre.org"
    },
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      "tags": [
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        "Vendor Advisory"
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      "source": "cve@mitre.org"
    },
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      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "tags": [
        "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-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mozilla Firefox before 7.0 and SeaMonkey before 2.4 do not properly restrict availability of motion data events, which makes it easier for remote attackers to read keystrokes by leveraging JavaScript code running in a background tab."
    },
    {
      "lang": "es",
      "value": "Mozilla Firefox antes de v7.0 y SeaMonkey antes de v2.4 no restringe correctamente la disponibilidad de los datos de movimiento de eventos, lo que hace que sea más fácil para los atacantes remotos leer las pulsaciones de teclado mediante el aprovechamiento de código JavaScript que se ejecuta en una pestaña en segundo plano."
    }
  ],
  "lastModified": "2026-06-16T23:34:03.800",
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  "sourceIdentifier": "cve@mitre.org"
}