{"id":19958,"date":"2026-04-17T13:21:00","date_gmt":"2026-04-17T13:21:00","guid":{"rendered":"https:\/\/sekuritasit.com\/index.php\/2026\/04\/17\/three-microsoft-defender-zero-days-actively-exploited-two-still-unpatched-infothehackernews-com-the-hacker-news\/"},"modified":"2026-04-17T13:21:00","modified_gmt":"2026-04-17T13:21:00","slug":"three-microsoft-defender-zero-days-actively-exploited-two-still-unpatched-infothehackernews-com-the-hacker-news","status":"publish","type":"post","link":"https:\/\/sekuritasit.com\/index.php\/2026\/04\/17\/three-microsoft-defender-zero-days-actively-exploited-two-still-unpatched-infothehackernews-com-the-hacker-news\/","title":{"rendered":"Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched info@thehackernews.com (The Hacker News)"},"content":{"rendered":"<p>Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems.<br \/>\nThe activity involves\u00a0the exploitation of three vulnerabilities that are codenamed BlueHammer (requires GitHub sign-in), RedSun, and UnDefend, all of which were released as zero-days by a researcher known as Chaotic Eclipse (<a href=\"https:\/\/thehackernews.com\/2026\/04\/three-microsoft-defender-zero-days.html\" target=\"_blank\" class=\"feedzy-rss-link-icon\">Read More<\/a>\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems. The activity involves\u00a0the exploitation of three vulnerabilities that are codenamed BlueHammer (requires GitHub sign-in), RedSun, and UnDefend, all of which were released as zero-days by a researcher known as Chaotic Eclipse (Read [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19959,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19958","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"Huntress is warning that threat actors are exploiting three recently disclosed security flaws in Microsoft Defender to gain elevated privileges in compromised systems. 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