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CVE-2025-14326

Estado: ModificadaCrítica (9.8)—

Use-after-free in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 146 and Thunderbird 146.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad remota (AV:N, PR:N, UI:N) en componente GMP de Firefox/Thunderbird. Use-after-free permite ejecución de código arbitrario sin privilegios previos ni interacción del usuario, típico de T1190. El impacto es ejecución de comandos (T1059) con efectos críticos (C:H, I:H, A:H).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (2)

Mozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "automatable": "yes"
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-12-11T20:47:02.613216Z"
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  "published": "2025-12-09T16:17:40.120",
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    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1840666",
      "tags": [
        "Issue Tracking",
        "Permissions Required"
      ],
      "source": "security@mozilla.org"
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2025-92/",
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  "vulnStatus": "Modified",
  "weaknesses": [
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    },
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    }
  ],
  "lastModified": "2026-10-05T15:10:00.590",
  "configurations": [
    {
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