CVE-2015-4509

Estado: ModificadaAlta (7.5)—
Vulnerabilidad de uso después de liberación en la memoria en la interfaz HTMLVideoElement en Mozilla Firefox en versiones anteriores a 41.0 y Firefox ESR 38.x en versiones anteriores a 38.3, permite a atacantes remotos ejecutar código arbitrario a través de código JavaScript que modifica la tabla URI de un elemento media, también conocida como ZDI-CAN-3176.
CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 7.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 6.08%
Percentil entre todas las CVEs puntuadas: 93
Fecha de la puntuación: 11/10/2026
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 (1)

Mozilla — Firefox
CWE

NVD-CWE-Other
Referencias

JSON original (NVD)

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{
  "id": "CVE-2015-4509",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-09-24T04:59:12.270",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html",
      "source": "security@mozilla.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html",
      "source": "security@mozilla.org"
    },
    {
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html",
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    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1834.html",
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    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1852.html",
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    },
    {
      "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-106.html",
      "tags": [
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    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html",
      "source": "security@mozilla.org"
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    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html",
      "source": "security@mozilla.org"
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    {
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      "url": "http://www.securitytracker.com/id/1033640",
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    {
      "url": "http://www.zerodayinitiative.com/advisories/ZDI-15-646",
      "source": "security@mozilla.org"
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    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1198435",
      "source": "security@mozilla.org"
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    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1198435",
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    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use-after-free vulnerability in the HTMLVideoElement interface in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allows remote attackers to execute arbitrary code via crafted JavaScript code that modifies the URI table of a media element, aka ZDI-CAN-3176."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso después de liberación en la memoria en la interfaz HTMLVideoElement en Mozilla Firefox en versiones anteriores a 41.0 y Firefox ESR 38.x en versiones anteriores a 38.3, permite a atacantes remotos ejecutar código arbitrario a través de código JavaScript que modifica la tabla URI de un elemento media, también conocida como ZDI-CAN-3176."
    }
  ],
  "lastModified": "2026-06-17T00:27:26.163",
  "configurations": [
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  "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/416.html\">CWE-416: Use After Free</a>",
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}