{"id":9985,"date":"2026-09-22T18:11:43","date_gmt":"2026-09-22T18:11:43","guid":{"rendered":"https:\/\/news.cybertechworld.co.in\/index.php\/2026\/09\/22\/researcher-drops-bigdiskbuster-zero-day-poc-that-blocks-microsoft-defender-updates\/"},"modified":"2026-09-22T18:11:43","modified_gmt":"2026-09-22T18:11:43","slug":"researcher-drops-bigdiskbuster-zero-day-poc-that-blocks-microsoft-defender-updates","status":"publish","type":"post","link":"https:\/\/news.cybertechworld.co.in\/index.php\/2026\/09\/22\/researcher-drops-bigdiskbuster-zero-day-poc-that-blocks-microsoft-defender-updates\/","title":{"rendered":"Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates"},"content":{"rendered":"<p>\u200bA zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was\u00a0published on GitHub\u00a0on September 19.<\/p>\n<p>The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in\u00a0A zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was\u00a0published on GitHub\u00a0on September 19.<\/p>\n<p>The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in\u00a0\u00a0The Hacker News<\/p>","protected":false},"excerpt":{"rendered":"<p>\u200bA zero-day proof-of-concept tool that stops Microsoft Defender from installing platform and signature updates by filling all available disk space was\u00a0published on GitHub\u00a0on September 19. The tool, called BigDiskBuster, has no patch, no CVE, and no Microsoft advisory. Its author, Abdelhamid Naceri, is a former Microsoft security researcher whose earlier Defender exploits were used in\u00a0A&hellip;&nbsp;<a href=\"https:\/\/news.cybertechworld.co.in\/index.php\/2026\/09\/22\/researcher-drops-bigdiskbuster-zero-day-poc-that-blocks-microsoft-defender-updates\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Researcher Drops BigDiskBuster Zero-Day PoC That Blocks Microsoft Defender Updates<\/span><\/a><\/p>\n","protected":false},"author":0,"featured_media":9986,"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\/9985"}],"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=9985"}],"version-history":[{"count":0,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/posts\/9985\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/media\/9986"}],"wp:attachment":[{"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/media?parent=9985"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/categories?post=9985"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news.cybertechworld.co.in\/index.php\/wp-json\/wp\/v2\/tags?post=9985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}