<style id="elementor-post-13759">.elementor-13759 .elementor-element.elementor-element-7fd8babb{margin-top:-20px;margin-bottom:0px;padding:0px 0px 0px 0px;}.elementor-13759 .elementor-element.elementor-element-6dee693a > .elementor-widget-wrap > .elementor-widget:not(.elementor-widget__width-auto):not(.elementor-widget__width-initial):not(:last-child):not(.elementor-absolute){margin-block-end:5px;}.elementor-13759 .elementor-element.elementor-element-6dee693a > .elementor-element-populated{padding:0px 0px 20px 0px;}.elementor-13759 .elementor-element.elementor-element-554d2e5c{--divider-border-style:solid;--divider-color:#0000001A;--divider-border-width:1px;}.elementor-13759 .elementor-element.elementor-element-554d2e5c .elementor-divider-separator{width:100%;}.elementor-13759 .elementor-element.elementor-element-554d2e5c .elementor-divider{padding-block-start:15px;padding-block-end:15px;}.elementor-13759 .elementor-element.elementor-element-316004b > .elementor-widget-container{background-color:#FFFFFF80;margin:0px 0px 20px 0px;}.elementor-13759 .elementor-element.elementor-element-316004b{--box-border-color:#00000029;--item-text-hover-decoration:underline;}.elementor-13759 .elementor-element.elementor-element-316004b .elementor-toc__header-title{text-align:start;}.elementor-13759 .elementor-element.elementor-element-316004b .elementor-toc__header{flex-direction:row;}/* Start custom CSS for text-editor, class: .elementor-element-1ce72d98 */.elementor-13759 .elementor-element.elementor-element-1ce72d98 a {
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}/* End custom CSS */</style>{"id":13759,"date":"2026-05-06T09:27:32","date_gmt":"2026-05-06T07:27:32","guid":{"rendered":"https:\/\/www.infordisa.com\/soc\/?p=13759"},"modified":"2026-05-06T09:37:07","modified_gmt":"2026-05-06T07:37:07","slug":"vulnerabilitat-0-day-adobe-acrobat-reader","status":"publish","type":"post","link":"https:\/\/www.infordisa.com\/soc\/ca\/vulnerabilidad-0-day-adobe-acrobat-reader\/","title":{"rendered":"Vulnerabilitat 0-day a Adobe Acrobat Reader"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"13759\" class=\"elementor elementor-13759\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7fd8babb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7fd8babb\" 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-6dee693a\" data-id=\"6dee693a\" 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-3510934e elementor-widget elementor-widget-shortcode\" data-id=\"3510934e\" 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-1ce72d98 elementor-widget elementor-widget-text-editor\" data-id=\"1ce72d98\" 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:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-34621\" target=\"_blank\" rel=\"noopener\">CVE-2026-34621<\/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-554d2e5c elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"554d2e5c\" 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-316004b elementor-toc--content-ellipsis elementor-toc--minimized-on-mobile elementor-widget elementor-widget-table-of-contents\" data-id=\"316004b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings='{\"headings_by_tags\":[\"h2\",\"h3\"],\"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__316004b\" 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__316004b\" 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__316004b\" 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-f524ee6 elementor-widget elementor-widget-text-editor\" data-id=\"f524ee6\" 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>Descripci&oacute;n<\/h2><p>Se ha identificado 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> cr&iacute;tica <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 Adobe Acrobat Reader 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>-2026-34621<\/strong>, la cual est&aacute; siendo activamente explotada en ataques dirigidos.<\/p><p>Esta vulnerabilidad permite a un atacante <strong>ejecutar c&oacute;digo arbitrario en el sistema afectado mediante la apertura de un archivo PDF especialmente manipulado<\/strong>. La explotaci&oacute;n no requiere interacci&oacute;n avanzada por parte del usuario m&aacute;s all&aacute; de abrir el documento, lo que la convierte en una <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/amenaza\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>amenaza<\/a> especialmente peligrosa en campa&ntilde;as 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>.<\/p><h2>Riesgo<\/h2><p>Los atacantes est&aacute;n utilizando esta vulnerabilidad para distribuir <a class=\"glossaryLink\"  href=\"https:\/\/www.infordisa.com\/soc\/ca\/glosario-definicion\/malware\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex='0' role='link'>malware<\/a>, robar informaci&oacute;n sensible y comprometer equipos dentro de redes corporativas. Debido a la amplia implantaci&oacute;n de Acrobat Reader en entornos empresariales, el impacto potencial es elevado.<\/p><ul><li>Tipo de <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>: Ejecuci&oacute;n remota de c&oacute;digo (RCE)<\/li><li>Vector de ataque: Archivo PDF malicioso<\/li><li>Interacci&oacute;n requerida: S&iacute; (apertura del archivo)<\/li><li>Estado: Explotaci&oacute;n activa detectada<\/li><\/ul><h2>Versiones afectadas<\/h2><p>La vulnerabilidad afecta a varias l&iacute;neas de productos de Acrobat y Reader, tanto para Windows como para macOS. Adobe ha publicado versiones parcheadas bajo el bolet&iacute;n APSB26-43:<\/p><ul><li>Acrobat DC \/ Acrobat Reader DC (Windows\/Mac) 26.001.21411<\/li><li>Acrobat 2024 (Windows) 24.001.30362<\/li><li>Acrobat 2024 (macOS) 24.001.30360<\/li><\/ul><h2>Recomendaciones<\/h2><ul><li><strong><a href=\"https:\/\/helpx.adobe.com\/es\/security\/products\/acrobat\/apsb26-43.html\" target=\"_blank\" rel=\"noopener\">Actualizar inmediatamente Adobe Acrobat Reader<\/a> a la &uacute;ltima versi&oacute;n disponible<\/strong>.<\/li><li>Evitar la apertura de archivos PDF de origen desconocido o no verificado.<\/li><li>Implementar soluciones de seguridad con capacidad de an&aacute;lisis de archivos (sandboxing).<\/li><li>Monitorizar posibles indicadores de compromiso en endpoints.<\/li><li>Aplicar pol&iacute;ticas de restricci&oacute;n en la ejecuci&oacute;n de archivos adjuntos.<\/li><\/ul><h2>Recordatorio<\/h2><p>Desde el SOC de Infordisa os recordamos la necesidad de revisi&oacute;n de todos los sistemas que utilicen este software tan popular y aplicar medidas de mitigaci&oacute;n de forma urgente.<\/p><p>Mantener siempre el software actualizado es una de las medidas m&aacute;s efectivas para prevenir este tipo de ataques.<\/p>\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>Esta <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> permite a un atacante ejecutar c&oacute;digo arbitrario en el sistema afectado mediante la apertura de un archivo PDF.<\/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":[78,179,147],"class_list":["post-13759","post","type-post","status-publish","format-standard","hentry","category-alertas-de-seguridad","tag-0-day","tag-adobe","tag-vulnerabilidad","masonry-post","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-25"],"acf":[],"yoast_head":"<title>Vulnerabilidad 0-day en Adobe Acrobat Reader - 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