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CVE-2025-1017

Estado: ModificadaCrítica (9.8)—

Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135.

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:3.1/AV:N/AC:L/PR:N/UI:N indica exposición remota sin privilegios ni interacción, y CWE-787 (buffer overflow) en navegador/cliente confirma T1190. El texto explícita 'arbitrary code' como potencial impacto.

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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  "published": "2025-02-04T14:15:32.600",
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    },
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      "value": "Se han detectado errores de seguridad de memoria en Firefox 134, Thunderbird 134, Firefox ESR 128.6 y Thunderbird 128.6. Algunos de estos errores mostraban evidencia de corrupción de memoria y suponemos que, con el suficiente esfuerzo, algunos de ellos podrían haberse aprovechado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 135, Firefox ESR < 128.7, Thunderbird < 128.7 y Thunderbird < 135."
    }
  ],
  "lastModified": "2026-09-30T19:10:01.007",
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