{"id":135517,"date":"2026-08-20T09:57:10","date_gmt":"2026-08-20T00:57:10","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=135517"},"modified":"2026-08-20T09:57:10","modified_gmt":"2026-08-20T00:57:10","slug":"windows-defender-scan-bug-zero-day-update","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/windows-defender-scan-bug-zero-day-update\/","title":{"rendered":"Microsoft\u3001Defender\u306e\u30bc\u30ed\u30c7\u30a4\u4fee\u6b63\u3067\u6df7\u4e71\u3002\u6700\u65b0\u5b9a\u7fa9\u3067\u3088\u3046\u3084\u304f\u6539\u5584\u3078"},"content":{"rendered":"<p><img decoding=\"async\" style=\"display:block; margin-left:auto; margin-right:auto;\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2020\/06\/security-protection-anti-virus-software-60504.jpeg\" alt=\"Security protection anti virus software 60504\" title=\"security-protection-anti-virus-software-60504.jpeg\" border=\"0\" width=\"1280\" height=\"853\" \/><\/p>\n<p>Microsoft\u304cWindows Defender\u306e\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u904e\u7a0b\u3067\u3001\u30a6\u30a4\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u6a5f\u80fd\u305d\u306e\u3082\u306e\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308b\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u306f\u300c\u30af\u30a4\u30c3\u30af\u30b9\u30ad\u30e3\u30f3\u3082\u30d5\u30eb\u30b9\u30ad\u30e3\u30f3\u3082\u6700\u5f8c\u306e\u6570\uff05\u3067\u30af\u30e9\u30c3\u30b7\u30e5\u3059\u308b\u300d\u300c\u30aa\u30d5\u30e9\u30a4\u30f3\u30b9\u30ad\u30e3\u30f3\u306f91%\u3067\u6b62\u307e\u308b\u300d\u3068\u3044\u3063\u305f\u5831\u544a\u304c\u5bc4\u305b\u3089\u308c\u3066\u304a\u308a\u3001<a href=\"https:\/\/www.reddit.com\/r\/antivirus\/comments\/1vrkto7\/windows_defender_not_working\/\">Reddit<\/a>\u306e\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u30a4\u30d9\u30f3\u30c8\u30d3\u30e5\u30a2\u30fc\u3067\u3001<strong>mpengine.dll<\/strong>\u95a2\u9023\u306e\u30af\u30e9\u30c3\u30b7\u30e5(\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9 0x000005)\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002DefenderApiLoggerLowPriv\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u30a8\u30e9\u30fc\u3082\u6570\u65e5\u9593\u7d9a\u3044\u3066\u3044\u305f\u3068\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7814\u7a76\u8005Aryeh Goretsky\u6c0f\u306f\u3001\u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u308b\u306e\u306f\u4ee5\u4e0b\u306eDefender\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u5b9a\u7fa9\u30d5\u30a1\u30a4\u30eb\u306e\u7d44\u307f\u5408\u308f\u305b\u3060\u3068\u6307\u6458\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>Defender\u672c\u4f53: v1.1.26070.7\/v1.1.26080.2<\/li>\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30b9\u66f4\u65b0: 1.457.222.0 \uff5e 1.457.230.0<\/li>\n<\/ul>\n<p>Microsoft\u304b\u3089\u516c\u5f0f\u306e\u30a2\u30ca\u30a6\u30f3\u30b9\u306f\u51fa\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5fa9\u5143\u3067\u4ee5\u524d\u306e\u5b9a\u7fa9\u30d5\u30a1\u30a4\u30eb\u306b\u623b\u3059\u3068\u554f\u984c\u304c\u89e3\u6d88\u3059\u308b\u3053\u3068\u304b\u3089\u3001Defender\u306e\u66f4\u65b0\u304c\u539f\u56e0\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u898b\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u80cc\u666f\u306b\u3042\u308b\u30bc\u30ed\u30c7\u30a4\u300cShieldBreak\u300d<\/h2>\n<p>\u4eca\u56de\u306e\u6df7\u4e71\u306e\u80cc\u666f\u306b\u306f\u3001\u7814\u7a76\u8005NightmareEclipse\u306b\u3088\u308b\u65b0\u305f\u306a\u30ed\u30fc\u30ab\u30eb\u6a29\u9650\u6607\u683c(LPE)PoC\u300c<a href=\"https:\/\/softantenna.com\/blog\/defender-bypass-shieldbreak-windows11\/\">ShieldBreak<\/a>\u300d\u306e\u516c\u958b\u304c\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002Microsoft\u306f\u3053\u308c\u3092\u6025\u304e\u4fee\u6b63\u3057\u3088\u3046\u3068\u3057\u305f\u3082\u306e\u306e\u3001\u305d\u306e\u904e\u7a0b\u3067\u30b9\u30ad\u30e3\u30f3\u6a5f\u80fd\u306b\u5f71\u97ff\u304c\u51fa\u305f\u3068\u307f\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30bc\u30ed\u30c7\u30a4\u5bfe\u5fdc\u306e\u305f\u3081\u306e\u66f4\u65b0\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u904b\u7528\u3092\u59a8\u3052\u308b\u5f62\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3053\u3068\u306f\u3001Defender\u306e\u4fe1\u983c\u6027\u306b\u3068\u3063\u3066\u75db\u624b\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h2>Microsoft\u304c\u4fee\u6b63\u3092\u958b\u59cb\u3001\u6700\u65b0\u5b9a\u7fa9\u3067\u6539\u5584<\/h2>\n<p>\u4eca\u56de\u306e\u4e00\u4ef6\u306f\u3001\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u3078\u306e\u8fc5\u901f\u306a\u5bfe\u5fdc\u306e\u526f\u4f5c\u7528\u304c\u30e6\u30fc\u30b6\u30fc\u74b0\u5883\u306b\u60aa\u5f71\u97ff\u3092\u4e0e\u3048\u305f\u4e8b\u4f8b\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u3053\u306e\u554f\u984c\u306f<strong>\u305d\u306e\u5f8c\u516c\u958b\u3055\u308c\u305fDefender\u306e\u5b9a\u7fa9\u30d5\u30a1\u30a4\u30eb1.457.236.0\u306b\u3088\u3063\u3066\u89e3\u6d88<\/strong>\u3055\u308c\u305f\u3068\u306e\u3053\u3068\u3067\u3059\u3002\u30b9\u30ad\u30e3\u30f3\u304c\u6b63\u5e38\u306b\u5b8c\u4e86\u3057\u306a\u3044\u5834\u5408\u306f\u3001\u5b9a\u7fa9\u30d5\u30a1\u30a4\u30eb\u3092\u6700\u65b0\u306b\u66f4\u65b0\u3059\u308b\u3053\u3068\u3067\u6539\u5584\u304c\u671f\u5f85\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>[via <a href=\"https:\/\/www.neowin.net\/news\/microsoft-totally-breaks-windows-defender-virus-scans-in-trying-to-fix-a-0-day-flaw\/\/\">Neowin<\/a>]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft\u304cWindows Defender\u306e\u30bc\u30ed\u30c7\u30a4\u8106\u5f31\u6027\u3092\u4fee\u6b63\u3059\u308b\u904e\u7a0b\u3067\u3001\u30a6\u30a4\u30eb\u30b9\u30b9\u30ad\u30e3\u30f3\u6a5f\u80fd\u305d\u306e\u3082\u306e\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308b\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3044\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002 \u30e6\u30fc\u30b6\u30fc\u304b\u3089\u306f\u300c\u30af\u30a4\u30c3\u30af\u30b9\u30ad\u30e3\u30f3\u3082\u30d5\u30eb\u30b9\u30ad\u30e3 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":79780,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[4896,3298,4387],"class_list":["post-135517","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-defender","tag-windows","tag-windows11"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/135517","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=135517"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/135517\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/79780"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=135517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=135517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=135517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}