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CVE-2026-74990

Firefox

Descripción

Internally found bugs present in Firefox ESR 115.38, Firefox ESR 140.13, Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

CVSS 9.8EPSS 0.534%Riesgo 1.03
Ver fuente
Publicación
2026-08-18 13:17:40
Versiones afectadas
<154
Tipo
Aplicación web
Última modificación
2026-08-24 09:16:47
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H