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CVE-2026-4710

Estado: ModificadaCrítica (9.8)—

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.

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.

Vector CVSS AV:N/AC:L/PR:N/UI:N indica acceso remoto sin privilegios ni interacción (T1190). CWE-119 (buffer overflow) en componente Audio/Video de Firefox/Thunderbird permite ejecución de código arbitrario (T1059) con confidencialidad, integridad y disponibilidad comprometidas (CVSS CRITICAL).

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)

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          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-03-26T18:52:46.444267Z"
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  "published": "2026-03-24T13:16:06.910",
  "references": [
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2016370",
      "tags": [
        "Permissions Required"
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      "source": "security@mozilla.org"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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      "value": "Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
    },
    {
      "lang": "es",
      "value": "Condiciones de contorno incorrectas en el componente de Audio/Video. Esta vulnerabilidad afecta a Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149 y Thunderbird < 140.9."
    }
  ],
  "lastModified": "2026-06-17T10:57:05.240",
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