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CVE-2024-11698

Estado: AnalizadaCrítica (9.8)—

A flaw in handling fullscreen transitions may have inadvertently caused the application to become stuck in fullscreen mode when a modal dialog was opened during the transition. This issue left users unable to exit fullscreen mode using standard actions like pressing "Esc" or accessing right-click menus, resulting in a disrupted browsing experience until the browser is restarted. *This bug only affects the application when running on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.

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.

Aplicación web/navegador expuesto en red sin autenticación (AV:N/PR:N). El DoS al quedar atrapado en fullscreen impide uso normal hasta reinicio.

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

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

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          "role": "CISA Coordinator",
          "options": [
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2024-11-27T15:16:08.272929Z"
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  "published": "2024-11-26T14:15:19.330",
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    },
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      "url": "https://www.mozilla.org/security/advisories/mfsa2024-63/",
      "tags": [
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      "tags": [
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      "value": "A flaw in handling fullscreen transitions may have inadvertently caused the application to become stuck in fullscreen mode when a modal dialog was opened during the transition. This issue left users unable to exit fullscreen mode using standard actions like pressing \"Esc\" or accessing right-click menus, resulting in a disrupted browsing experience until the browser is restarted.  \n*This bug only affects the application when running on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5."
    },
    {
      "lang": "es",
      "value": "Es posible que una falla en el manejo de las transiciones de pantalla completa haya provocado que, sin darse cuenta, la aplicación se quedara bloqueada en el modo de pantalla completa cuando se abría un cuadro de diálogo modal durante la transición. Este problema impedía a los usuarios salir del modo de pantalla completa mediante acciones estándar, como presionar \"Esc\" o acceder a los menús del botón derecho, lo que provocaba una experiencia de navegación interrumpida hasta que se reiniciaba el navegador. *Este error solo afecta a la aplicación cuando se ejecuta en macOS. Otros sistemas operativos no se ven afectados.* Esta vulnerabilidad afecta a Firefox &lt; 133, Firefox ESR &lt; 128.5, Thunderbird &lt; 133 y Thunderbird &lt; 128.5."
    }
  ],
  "lastModified": "2026-06-17T06:58:15.987",
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