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CVE-2025-3032

Estado: ModificadaAlta (7.4)—

Leaking of file descriptors from the fork server to web content processes could allow for privilege escalation attacks. This vulnerability was fixed in Firefox 137 and Thunderbird 137.

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.

Acceso de red sin autenticación (AV:N/PR:N) en aplicación expuesta (Firefox/Thunderbird). La fuga de file descriptors permite escalada de privilegios desde el contexto web comprometido, logrando mayor nivel de acceso (leak → privilege escalation).

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

Application Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability ScanningThreat Intelligence ProgramPrivileged Account Management

Tecnologías afectadas (2)

Mozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

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          "options": [
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  "published": "2025-04-01T13:15:41.587",
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        "Issue Tracking",
        "Permissions Required"
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      "source": "security@mozilla.org"
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    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-09-30T18:10:00.190",
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