{"id":14001,"date":"2026-09-08T15:43:54","date_gmt":"2026-09-08T13:43:54","guid":{"rendered":"https:\/\/www.infordisa.com\/soc\/?p=14001"},"modified":"2026-09-09T11:23:29","modified_gmt":"2026-09-09T09:23:29","slug":"vulnerabilitat-v8-google-chrome","status":"publish","type":"post","link":"https:\/\/www.infordisa.com\/soc\/ca\/vulnerabilidad-v8-google-chrome\/","title":{"rendered":"Vulnerabilitat 0-day al V8 de Google Chrome"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14001\" class=\"elementor elementor-14001\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-be4e328 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"be4e328\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d81b9b7\" data-id=\"d81b9b7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d2719e8 elementor-widget elementor-widget-shortcode\" data-id=\"d2719e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><span style=\"color: #c02b23;font-weight: bold\">Alta <\/span><img loading=\"lazy\" decoding=\"async\" width=\"10\" height=\"10\" src=\"https:\/\/www.infordisa.com\/soc\/imgs\/alerta-4.png\" alt=\"Alerta 4\"\/><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-336be86 elementor-widget elementor-widget-text-editor\" data-id=\"336be86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><strong><a href=\"https:\/\/www.cve.org\/CVERecord?id=CVE-2026-85046\" target=\"_blank\" rel=\"noopener\">CVE-2026-85046<\/a><\/strong><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8b0a8b8 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"8b0a8b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d9d28f elementor-toc--content-ellipsis elementor-toc--minimized-on-mobile elementor-widget elementor-widget-table-of-contents\" data-id=\"0d9d28f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings='{\"headings_by_tags\":[\"h2\"],\"exclude_headings_by_selector\":[],\"marker_view\":\"bullets\",\"icon\":{\"value\":\"fas fa-chevron-right\",\"library\":\"fa-solid\"},\"no_headings_message\":\"No se ha encontrado ning\\u00fan encabezado en esta p\\u00e1gina.\",\"minimized_on\":\"mobile\",\"minimize_box\":\"yes\",\"hierarchical_view\":\"yes\",\"min_height\":{\"unit\":\"px\",\"size\":\"\",\"sizes\":[]},\"min_height_tablet\":{\"unit\":\"px\",\"size\":\"\",\"sizes\":[]},\"min_height_mobile\":{\"unit\":\"px\",\"size\":\"\",\"sizes\":[]}}' data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTabla de contenidos\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__0d9d28f\" aria-expanded=\"true\" aria-label=\"Abrir la tabla de contenidos\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__0d9d28f\" aria-expanded=\"true\" aria-label=\"Cerrar la tabla de contenidos\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__0d9d28f\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7233d8 elementor-widget elementor-widget-text-editor\" data-id=\"c7233d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2 dir=\"ltr\">Resumen<\/h2><p dir=\"ltr\">Google ha publicado una actualizaci&oacute;n de emergencia para Chrome que corrige una <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/vulnerabilidad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">vulnerabilidad<\/a> de tipo d&iacute;a cero (<a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/0-day\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>0-day<\/a>) en el motor JavaScript V8, catalogada como <strong><a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/cve\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>CVE<\/a>-2026-85046<\/strong>, y que se est&aacute; explotando activamente en Internet. Se recomienda actualizar el navegador de inmediato.<\/p><h2 dir=\"ltr\">Detalles t&eacute;cnicos<\/h2><p dir=\"ltr\">La vulnerabilidad es un fallo de <strong>type confusion<\/strong> en el compilador <strong>Maglev<\/strong> de V8, relacionado con decisiones de optimizaci&oacute;n en torno a <code>Array.prototype.sort<\/code>, que puede dejar el motor en un estado inconsistente y ser aprovechado para ejecutar c&oacute;digo arbitrario.<\/p><ul dir=\"ltr\"><li><strong>CVE:<\/strong> CVE-2026-85046<\/li><li><strong>Puntuaci&oacute;n CVSS:<\/strong> 8.8 (alta)<\/li><li><strong>Vector de ataque:<\/strong> remoto; requiere interacci&oacute;n del usuario (visitar una p&aacute;gina HTML maliciosa)<\/li><li><strong>V&iacute;as de entrega probables:<\/strong> enlaces de <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/phishing\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>phishing<\/a>, <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/malvertising\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">malvertising<\/a> o sitios web comprometidos<\/li><li><strong>Descubridor:<\/strong> Salvatore Gulizia (&laquo;Serotav&raquo;), reportado el 4 de agosto de 2026 (recompensa de 1.000 $)<\/li><li>La actualizaci&oacute;n corrige un total de <strong>12 vulnerabilidades<\/strong>, siendo esta la &uacute;nica explotada activamente conocida hasta la fecha<\/li><\/ul><h2 dir=\"ltr\">Productos y versiones afectadas<\/h2><p dir=\"ltr\">Todas las versiones de <strong>Google Chrome anteriores a<\/strong>:<\/p><div dir=\"ltr\"><table><thead><tr><th scope=\"col\">Sistema operativo<\/th><th scope=\"col\">Versi&oacute;n corregida<\/th><\/tr><\/thead><tbody><tr><td>Windows \/ macOS<\/td><td>152.0.7977.82 \/ .83<\/td><\/tr><tr><td>Linux<\/td><td>152.0.7977.82<\/td><\/tr><\/tbody><\/table><\/div><p dir=\"ltr\">La actualizaci&oacute;n se liber&oacute; en el canal estable de escritorio el <strong>3 de septiembre de 2026<\/strong>.<\/p><blockquote><p dir=\"ltr\"><strong>Nota:<\/strong> los navegadores basados en Chromium (Microsoft Edge, Brave, Opera, Vivaldi, etc.) podr&iacute;an verse afectados igualmente. Se recomienda vigilar la publicaci&oacute;n de sus respectivas actualizaciones y aplicarlas en cuanto est&eacute;n disponibles.<\/p><\/blockquote><h2 dir=\"ltr\">Impacto<\/h2><p dir=\"ltr\">Un atacante que consiga que la v&iacute;ctima visite una p&aacute;gina web especialmente dise&ntilde;ada podr&iacute;a explotar esta vulnerabilidad para ejecutar c&oacute;digo arbitrario en el sistema, comprometiendo la <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/confidencialidad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">confidencialidad<\/a>, <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/integridad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">integridad<\/a> y <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/disponibilidad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">disponibilidad<\/a> del equipo afectado.<\/p><h2 dir=\"ltr\">Recomendaciones<\/h2><ul dir=\"ltr\"><li><strong>Actualizar Google Chrome de inmediato<\/strong> a la versi&oacute;n 152.0.7977.82\/83 o posterior (<code>chrome:\/\/settings\/help<\/code>).<\/li><li><strong>Reiniciar el navegador<\/strong> tras la actualizaci&oacute;n para que el parche se aplique correctamente.<\/li><li>En entornos corporativos, <strong>priorizar el despliegue del parche<\/strong> en equipos con mayor exposici&oacute;n (personal con acceso a datos sensibles, equipos de direcci&oacute;n, puestos con navegaci&oacute;n externa intensiva).<\/li><li>Verificar y, si es posible, forzar la actualizaci&oacute;n mediante pol&iacute;ticas centralizadas (GPO, RMM, etc.) en parques de equipos gestionados.<\/li><li>Extender la comprobaci&oacute;n a otros navegadores basados en Chromium utilizados en la organizaci&oacute;n.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Google ha publicado una actualizaci&oacute;n de emergencia que corrige una <a class=\"glossaryLink\" href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/vulnerabilidad\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">vulnerabilidad<\/a> de tipo d&iacute;a cero (0-day) en el motor JavaScript V8.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[4],"tags":[121,147],"class_list":["post-14001","post","type-post","status-publish","format-standard","hentry","category-alertas-de-seguridad","tag-google-chrome","tag-vulnerabilidad","masonry-post","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-25"],"acf":[],"yoast_head":"<title>Vulnerabilidad 0-day en el V8 de Google Chrome - 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