\u200bThreat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December\u00a02025.
\nThe finding, detailed by EXPMON’s Haifei Li, has\u00a0been described as a highly-sophisticated PDF exploit.\u00a0The artifact (“Invoice540.pdf”) first appeared on the VirusTotal platform on November 28, 2025.\u00a0A second\u00a0\u00a0Threat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December\u00a02025.
\nThe finding, detailed by EXPMON’s Haifei Li, has\u00a0been described as a highly-sophisticated PDF exploit.\u00a0The artifact (“Invoice540.pdf”) first appeared on the VirusTotal platform on November 28, 2025.\u00a0A second\u00a0\u00a0\u00a0The Hacker News<\/p>","protected":false},"excerpt":{"rendered":"
\u200bThreat actors have been exploiting a previously unknown zero-day vulnerability in Adobe Reader using maliciously crafted PDF documents since at least December\u00a02025. The finding, detailed by EXPMON’s Haifei Li, has\u00a0been described as a highly-sophisticated PDF exploit.\u00a0The artifact (“Invoice540.pdf”) first appeared on the VirusTotal platform on November 28, 2025.\u00a0A second\u00a0\u00a0Threat actors have been exploiting a previously… Read More »Adobe Reader Zero-Day Exploited via Malicious PDFs Since December 2025<\/span><\/a><\/p>\n","protected":false},"author":0,"featured_media":7724,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/posts\/7723"}],"collection":[{"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/comments?post=7723"}],"version-history":[{"count":0,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/posts\/7723\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/media\/7724"}],"wp:attachment":[{"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/media?parent=7723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/categories?post=7723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/tags?post=7723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}