{"id":47913,"date":"2026-05-23T15:06:34","date_gmt":"2026-05-23T08:06:34","guid":{"rendered":"https:\/\/antoanthongtinhaiphong.gov.vn\/?p=47913"},"modified":"2026-05-29T15:07:25","modified_gmt":"2026-05-29T08:07:25","slug":"microsoft-canh-bao-hai-lo-hong-defender-dang-bi-khai-thac-co-the-chiem-quyen-system","status":"publish","type":"post","link":"https:\/\/antoanthongtinhaiphong.gov.vn\/microsoft-canh-bao-hai-lo-hong-defender-dang-bi-khai-thac-co-the-chiem-quyen-system\/","title":{"rendered":"Microsoft c\u1ea3nh b\u00e1o hai l\u1ed7 h\u1ed5ng Defender \u0111ang b\u1ecb khai th\u00e1c, c\u00f3 th\u1ec3 chi\u1ebfm quy\u1ec1n SYSTEM"},"content":{"rendered":"<div><b>Microsoft ph\u00e1t \u0111i c\u1ea3nh b\u00e1o kh\u1ea9n v\u1ec1 hai l\u1ed7 h\u1ed5ng trong Microsoft Defender \u0111ang b\u1ecb tin t\u1eb7c khai th\u00e1c ngo\u00e0i th\u1ef1c t\u1ebf. M\u1ed9t trong s\u1ed1 \u0111\u00f3 l\u00e0 l\u1ed7 h\u1ed5ng leo thang \u0111\u1eb7c quy\u1ec1n c\u00f3 th\u1ec3 gi\u00fap k\u1ebb t\u1ea5n c\u00f4ng gi\u00e0nh quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n h\u1ec7 th\u1ed1ng \u1edf c\u1ea5p \u0111\u1ed9 cao nh\u1ea5t tr\u00ean Windows.<\/b><br \/>\n\u200b<\/div>\n<div><a class=\"js-lbImage\" href=\"https:\/\/whitehat.vn\/attachments\/efc35b5b-eeb6-40e7-aa60-589a730f87c1-png.19059\/\" target=\"_blank\" rel=\"noopener\" data-lb-sidebar-href=\"\" data-lb-caption-extra-html=\"\" data-fancybox=\"lb-thread-19594\" data-caption=\"&lt;h4&gt;efc35b5b-eeb6-40e7-aa60-589a730f87c1.png&lt;\/h4&gt;&lt;p&gt;&lt;a href=&quot;https:&amp;#x2F;&amp;#x2F;whitehat.vn&amp;#x2F;threads&amp;#x2F;microsoft-canh-bao-hai-lo-hong-defender-dang-bi-khai-thac-co-the-chiem-quyen-system.19594&amp;#x2F;#post-45159&quot; class=&quot;js-lightboxCloser&quot;&gt;WhiteHat Team \u00b7 22&amp;#x2F;05&amp;#x2F;2026 l\u00fac 4:19 PM&lt;\/a&gt;&lt;\/p&gt;\"><img loading=\"lazy\" decoding=\"async\" class=\"bbImage \" title=\"efc35b5b-eeb6-40e7-aa60-589a730f87c1.png\" src=\"https:\/\/whitehat.vn\/data\/attachments\/19\/19394-c3caf2dda81d17527d268b4048324d1a.jpg\" alt=\"efc35b5b-eeb6-40e7-aa60-589a730f87c1.png\" width=\"761\" height=\"400\" \/><\/a>\u200b\u0110\u1ed9ng th\u00e1i n\u00e0y di\u1ec5n ra ch\u1ec9 \u00edt ng\u00e0y sau khi Microsoft x\u00e1c nh\u1eadn m\u1ed9t l\u1ed7 h\u1ed5ng kh\u00e1c tr\u00ean Exchange Server \u0111ang b\u1ecb khai th\u00e1c trong c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng th\u1ef1c t\u1ebf. \u0110i\u1ec1u \u0111\u00f3 cho th\u1ea5y c\u00e1c s\u1ea3n ph\u1ea9m c\u1ed1t l\u00f5i c\u1ee7a h\u00e3ng ti\u1ebfp t\u1ee5c l\u00e0 m\u1ee5c ti\u00eau h\u1ea5p d\u1eabn \u0111\u1ed1i v\u1edbi gi\u1edbi t\u1ed9i ph\u1ea1m m\u1ea1ng v\u00e0 c\u00e1c nh\u00f3m t\u1ea5n c\u00f4ng c\u00f3 ch\u1ee7 \u0111\u00edch.\u200b<\/div>\n<div>Hai l\u1ed7 h\u1ed5ng n\u00e0o \u0111ang b\u1ecb khai th\u00e1c?\u200b<\/div>\n<div>L\u1ed7 h\u1ed5ng nghi\u00eam tr\u1ecdng nh\u1ea5t \u0111\u01b0\u1ee3c theo d\u00f5i v\u1edbi m\u00e3 \u0111\u1ecbnh danh CVE-2026-41091, c\u00f3 \u0111i\u1ec3m CVSS 7,8\/10. \u0110\u00e2y l\u00e0 l\u1ed7i leo thang \u0111\u1eb7c quy\u1ec1n c\u1ee5c b\u1ed9 (Local Privilege Escalation &#8211; LPE) trong Microsoft Defender.<\/p>\n<p>Theo Microsoft, nguy\u00ean nh\u00e2n xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c ph\u1ea7n m\u1ec1m x\u1eed l\u00fd kh\u00f4ng \u0111\u00fang c\u00e1c li\u00ean k\u1ebft t\u1ec7p (link following) tr\u01b0\u1edbc khi truy c\u1eadp d\u1eef li\u1ec7u. K\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e3 c\u00f3 quy\u1ec1n truy c\u1eadp h\u1ee3p l\u1ec7 tr\u00ean m\u00e1y t\u00ednh c\u00f3 th\u1ec3 l\u1ee3i d\u1ee5ng \u0111i\u1ec3m y\u1ebfu n\u00e0y \u0111\u1ec3 n\u00e2ng quy\u1ec1n l\u00ean m\u1ee9c SYSTEM<b>.<\/b><\/p>\n<p>L\u1ed7 h\u1ed5ng th\u1ee9 hai mang m\u00e3 CVE-2026-45498, c\u00f3 \u0111i\u1ec3m CVSS 4,0\/10, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn Microsoft Defender d\u01b0\u1edbi d\u1ea1ng l\u1ed7i t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (Denial-of-Service &#8211; DoS). N\u1ebfu b\u1ecb khai th\u00e1c th\u00e0nh c\u00f4ng, h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 b\u1ecb gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng ho\u1eb7c m\u1ea5t kh\u1ea3 n\u0103ng x\u1eed l\u00fd b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>\u0110i\u1ec1u \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 Microsoft x\u00e1c nh\u1eadn c\u1ea3 hai l\u1ed7 h\u1ed5ng \u0111\u1ec1u \u0111\u00e3 b\u1ecb khai th\u00e1c trong th\u1ef1c t\u1ebf, tuy nhi\u00ean h\u00e3ng ch\u01b0a c\u00f4ng b\u1ed1 chi ti\u1ebft v\u1ec1 ph\u01b0\u01a1ng th\u1ee9c t\u1ea5n c\u00f4ng, quy m\u00f4 chi\u1ebfn d\u1ecbch hay nh\u00f3m tin t\u1eb7c \u0111\u1ee9ng sau.\u200b<\/p><\/div>\n<div>L\u1ed7 h\u1ed5ng leo thang \u0111\u1eb7c quy\u1ec1n nguy hi\u1ec3m nh\u01b0 th\u1ebf n\u00e0o?\u200b<\/div>\n<div>Trong l\u0129nh v\u1ef1c an ninh m\u1ea1ng, c\u00e1c l\u1ed7 h\u1ed5ng leo thang \u0111\u1eb7c quy\u1ec1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c xem l\u00e0 &#8220;m\u1ea3nh gh\u00e9p cu\u1ed1i c\u00f9ng&#8221; gi\u00fap tin t\u1eb7c ho\u00e0n t\u1ea5t qu\u00e1 tr\u00ecnh chi\u1ebfm quy\u1ec1n ki\u1ec3m so\u00e1t thi\u1ebft b\u1ecb.<\/p>\n<p>Th\u00f4ng th\u01b0\u1eddng, sau khi x\u00e2m nh\u1eadp \u0111\u01b0\u1ee3c v\u00e0o m\u00e1y t\u00ednh th\u00f4ng qua email l\u1eeba \u0111\u1ea3o, ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ho\u1eb7c t\u00e0i kho\u1ea3n b\u1ecb \u0111\u00e1nh c\u1eafp, k\u1ebb t\u1ea5n c\u00f4ng v\u1eabn b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi quy\u1ec1n c\u1ee7a ng\u01b0\u1eddi d\u00f9ng hi\u1ec7n t\u1ea1i. Tuy nhi\u00ean, n\u1ebfu khai th\u00e1c th\u00e0nh c\u00f4ng CVE-2026-41091, ch\u00fang c\u00f3 th\u1ec3 n\u00e2ng quy\u1ec1n l\u00ean SYSTEM \u0111\u1ec3 th\u1ef1c hi\u1ec7n h\u00e0ng lo\u1ea1t h\u00e0nh vi nguy hi\u1ec3m nh\u01b0:\u200b<\/p><\/div>\n<ul>\n<li data-xf-list-type=\"ul\">\n<div>V\u00f4 hi\u1ec7u h\u00f3a c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>C\u00e0i \u0111\u1eb7t m\u00e3 \u0111\u1ed9c \u1edf c\u1ea5p \u0111\u1ed9 h\u1ec7 th\u1ed1ng.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Truy c\u1eadp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>T\u1ea1o t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb b\u00ed m\u1eadt.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Duy tr\u00ec quy\u1ec1n truy c\u1eadp l\u00e2u d\u00e0i tr\u00ean thi\u1ebft b\u1ecb.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>M\u1edf \u0111\u01b0\u1eddng cho ransomware ho\u1eb7c c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ti\u1ebfp theo.\u200b<\/div>\n<\/li>\n<\/ul>\n<div>\u0110\u00e2y l\u00e0 l\u00fd do c\u00e1c l\u1ed7 h\u1ed5ng leo thang \u0111\u1eb7c quy\u1ec1n th\u01b0\u1eddng xuy\u00ean xu\u1ea5t hi\u1ec7n trong chu\u1ed7i t\u1ea5n c\u00f4ng c\u1ee7a c\u00e1c nh\u00f3m ransomware v\u00e0 APT hi\u1ec7n \u0111\u1ea1i.\u200b<\/div>\n<div>Microsoft \u0111\u00e3 ph\u00e1t h\u00e0nh b\u1ea3n v\u00e1\u200b<\/div>\n<div>Microsoft cho bi\u1ebft c\u00e1c l\u1ed7 h\u1ed5ng \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c trong c\u00e1c phi\u00ean b\u1ea3n:\u200b<\/div>\n<ul>\n<li data-xf-list-type=\"ul\">\n<div>Microsoft Defender Antimalware Platform 1.1.26040.8\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Microsoft Defender Platform 4.18.26040.7\u200b<\/div>\n<\/li>\n<\/ul>\n<div>Kh\u00e1c v\u1edbi nhi\u1ec1u s\u1ea3n ph\u1ea9m doanh nghi\u1ec7p y\u00eau c\u1ea7u qu\u1ea3n tr\u1ecb vi\u00ean c\u00e0i \u0111\u1eb7t th\u1ee7 c\u00f4ng, Microsoft Defender th\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt n\u1ec1n t\u1ea3ng ch\u1ed1ng m\u00e3 \u0111\u1ed9c v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u nh\u1eadn di\u1ec7n m\u1ed1i \u0111e d\u1ecda. V\u00ec v\u1eady ph\u1ea7n l\u1edbn ng\u01b0\u1eddi d\u00f9ng Windows s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c b\u1ea3n v\u00e1 th\u00f4ng qua c\u01a1 ch\u1ebf c\u1eadp nh\u1eadt t\u1ef1 \u0111\u1ed9ng.<\/p>\n<p>Nh\u1eefng h\u1ec7 th\u1ed1ng \u0111\u00e3 v\u00f4 hi\u1ec7u h\u00f3a Microsoft Defender kh\u00f4ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp b\u1edfi c\u00e1c l\u1ed7 h\u1ed5ng n\u00e0y, tuy nhi\u00ean vi\u1ec7c t\u1eaft Defender c\u0169ng \u0111\u1ed3ng ngh\u0129a thi\u1ebft b\u1ecb m\u1ea5t \u0111i m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 quan tr\u1ecdng tr\u01b0\u1edbc c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng.\u200b<\/p><\/div>\n<div>C\u00e1ch ki\u1ec3m tra phi\u00ean b\u1ea3n Microsoft Defender\u200b<\/div>\n<div>Microsoft khuy\u1ebfn ngh\u1ecb ng\u01b0\u1eddi d\u00f9ng ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1eadp nh\u1eadt c\u1ee7a Defender b\u1eb1ng c\u00e1ch:\u200b<\/div>\n<ul>\n<li data-xf-list-type=\"ul\">\n<div>M\u1edf Windows Security.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Ch\u1ecdn Virus &amp; Threat Protection.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Truy c\u1eadp m\u1ee5c Protection Updates.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Nh\u1ea5n Check for Updates \u0111\u1ec3 t\u00ecm v\u00e0 c\u00e0i \u0111\u1eb7t b\u1ea3n c\u1eadp nh\u1eadt m\u1edbi nh\u1ea5t.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>V\u00e0o Settings \u2192 About \u0111\u1ec3 ki\u1ec3m tra phi\u00ean b\u1ea3n Antimalware Client.\u200b<\/div>\n<\/li>\n<\/ul>\n<div>Vi\u1ec7c \u0111\u1ea3m b\u1ea3o Defender lu\u00f4n \u1edf phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t gi\u00fap h\u1ec7 th\u1ed1ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c b\u1ea3n v\u00e1 b\u1ea3o m\u1eadt c\u0169ng nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u nh\u1eadn di\u1ec7n m\u00e3 \u0111\u1ed9c m\u1edbi nh\u1ea5t.\u200b<\/div>\n<div>CISA y\u00eau c\u1ea7u kh\u1eafc ph\u1ee5c kh\u1ea9n c\u1ea5p\u200b<\/div>\n<div>M\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a v\u1ee5 vi\u1ec7c \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n khi Cybersecurity and Infrastructure Security Agency (CISA) \u0111\u00e3 b\u1ed5 sung c\u1ea3 CVE-2026-41091 v\u00e0 CVE-2026-45498 v\u00e0o danh m\u1ee5c KEV.<\/p>\n<p>Theo quy \u0111\u1ecbnh c\u1ee7a CISA, c\u00e1c c\u01a1 quan thu\u1ed9c nh\u00e1nh h\u00e0nh ph\u00e1p li\u00ean bang M\u1ef9 ph\u1ea3i ho\u00e0n t\u1ea5t vi\u1ec7c \u00e1p d\u1ee5ng bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c tr\u01b0\u1edbc ng\u00e0y 03\/6\/2026 nh\u1eb1m gi\u1ea3m thi\u1ec3u nguy c\u01a1 b\u1ecb t\u1ea5n c\u00f4ng.<\/p>\n<p>Vi\u1ec7c m\u1ed9t l\u1ed7 h\u1ed5ng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o KEV th\u01b0\u1eddng l\u00e0 d\u1ea5u hi\u1ec7u cho th\u1ea5y c\u00e1c ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn v\u00e0 nguy c\u01a1 \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c l\u00e0 ho\u00e0n to\u00e0n th\u1ef1c t\u1ebf.\u200b<\/p><\/div>\n<div>Kh\u00f4ng ch\u1ec9 Defender, nhi\u1ec1u l\u1ed7 h\u1ed5ng Microsoft c\u0169 c\u0169ng b\u1ecb c\u1ea3nh b\u00e1o\u200b<\/div>\n<div>B\u00ean c\u1ea1nh hai l\u1ed7 h\u1ed5ng m\u1edbi, CISA c\u0169ng v\u1eeba b\u1ed5 sung th\u00eam m\u1ed9t s\u1ed1 l\u1ed7 h\u1ed5ng Microsoft t\u1ed3n t\u1ea1i t\u1eeb nhi\u1ec1u n\u0103m tr\u01b0\u1edbc nh\u01b0ng v\u1eabn ti\u1ebfp t\u1ee5c b\u1ecb khai th\u00e1c trong c\u00e1c chi\u1ebfn d\u1ecbch t\u1ea5n c\u00f4ng hi\u1ec7n nay.<\/p>\n<p>Danh s\u00e1ch n\u00e0y bao g\u1ed3m c\u00e1c l\u1ed7i th\u1ef1c thi m\u00e3 t\u1eeb xa tr\u00ean Internet Explorer, DirectX v\u00e0 Windows Server Service, n\u1ed5i b\u1eadt c\u00f3 CVE-2008-4250, l\u1ed7 h\u1ed5ng t\u1eebng b\u1ecb s\u00e2u m\u00e1y t\u00ednh Conficker l\u1ee3i d\u1ee5ng \u0111\u1ec3 l\u00e2y nhi\u1ec5m h\u00e0ng tri\u1ec7u m\u00e1y t\u00ednh tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n<p>Ngo\u00e0i ra, c\u01a1 quan n\u00e0y c\u0169ng c\u1ea3nh b\u00e1o v\u1ec1 CVE-2009-3459, m\u1ed9t l\u1ed7i tr\u00e0n b\u1ed9 \u0111\u1ec7m trong Adobe Acrobat Reader cho ph\u00e9p th\u1ef1c thi m\u00e3 \u0111\u1ed9c khi ng\u01b0\u1eddi d\u00f9ng m\u1edf t\u1ec7p PDF \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t.<\/p>\n<p>S\u1ef1 xu\u1ea5t hi\u1ec7n tr\u1edf l\u1ea1i c\u1ee7a c\u00e1c l\u1ed7 h\u1ed5ng h\u01a1n m\u1ed9t th\u1eadp k\u1ef7 tu\u1ed5i cho th\u1ea5y nhi\u1ec1u h\u1ec7 th\u1ed1ng tr\u00ean th\u1ef1c t\u1ebf v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt \u0111\u1ea7y \u0111\u1ee7 ho\u1eb7c \u0111ang v\u1eadn h\u00e0nh c\u00e1c ph\u1ea7n m\u1ec1m \u0111\u00e3 l\u1ed7i th\u1eddi.\u200b<\/p><\/div>\n<div>Khuy\u1ebfn ngh\u1ecb b\u1ea3o m\u1eadt\u200b<\/div>\n<div>C\u00e1c chuy\u00ean gia an ninh m\u1ea1ng khuy\u1ebfn ngh\u1ecb ng\u01b0\u1eddi d\u00f9ng v\u00e0 doanh nghi\u1ec7p:\u200b<\/div>\n<ul>\n<li data-xf-list-type=\"ul\">\n<div>Ki\u1ec3m tra v\u00e0 c\u1eadp nh\u1eadt Microsoft Defender l\u00ean phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t ngay l\u1eadp t\u1ee9c.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Kh\u00f4ng v\u00f4 hi\u1ec7u h\u00f3a Defender ho\u1eb7c c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o m\u1eadt t\u01b0\u01a1ng \u0111\u01b0\u01a1ng n\u1ebfu kh\u00f4ng th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>B\u1eadt c\u01a1 ch\u1ebf c\u1eadp nh\u1eadt t\u1ef1 \u0111\u1ed9ng cho Windows v\u00e0 c\u00e1c ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>Theo d\u00f5i nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c d\u1ea5u hi\u1ec7u leo thang \u0111\u1eb7c quy\u1ec1n b\u1ea5t th\u01b0\u1eddng.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>\u00c1p d\u1ee5ng nguy\u00ean t\u1eafc ph\u00e2n quy\u1ec1n t\u1ed1i thi\u1ec3u cho ng\u01b0\u1eddi d\u00f9ng v\u00e0 t\u00e0i kho\u1ea3n d\u1ecbch v\u1ee5.\u200b<\/div>\n<\/li>\n<li data-xf-list-type=\"ul\">\n<div>K\u1ebft h\u1ee3p c\u00e1c gi\u1ea3i ph\u00e1p EDR\/XDR \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c h\u00e0nh vi khai th\u00e1c sau x\u00e2m nh\u1eadp.\u200b<\/div>\n<\/li>\n<\/ul>\n<div>Vi\u1ec7c Microsoft x\u00e1c nh\u1eadn hai l\u1ed7 h\u1ed5ng trong Defender \u0111ang b\u1ecb khai th\u00e1c ngo\u00e0i th\u1ef1c t\u1ebf ch\u1ee9ng minh vi\u1ec7c ngay c\u1ea3 nh\u1eefng th\u00e0nh ph\u1ea7n b\u1ea3o m\u1eadt t\u00edch h\u1ee3p s\u1eb5n tr\u00ean Windows c\u0169ng c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a tin t\u1eb7c. \u0110\u1eb7c bi\u1ec7t, l\u1ed7 h\u1ed5ng CVE-2026-41091 cho ph\u00e9p leo thang l\u00ean quy\u1ec1n SYSTEM c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 \u0111\u1eafc l\u1ef1c cho c\u00e1c chi\u1ebfn d\u1ecbch ransomware, gi\u00e1n \u0111i\u1ec7p m\u1ea1ng ho\u1eb7c \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn.\u200b<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft ph\u00e1t \u0111i c\u1ea3nh b\u00e1o kh\u1ea9n v\u1ec1 hai l\u1ed7 h\u1ed5ng trong Microsoft Defender \u0111ang b\u1ecb tin t\u1eb7c khai th\u00e1c ngo\u00e0i th\u1ef1c t\u1ebf. M\u1ed9t trong s\u1ed1 \u0111\u00f3 l\u00e0 l\u1ed7 h\u1ed5ng leo thang \u0111\u1eb7c quy\u1ec1n c\u00f3 th\u1ec3 gi\u00fap k\u1ebb t\u1ea5n c\u00f4ng gi\u00e0nh quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n h\u1ec7 th\u1ed1ng \u1edf c\u1ea5p \u0111\u1ed9 cao nh\u1ea5t tr\u00ean Windows. \u200b \u200b\u0110\u1ed9ng th\u00e1i [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":47914,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[3,24,35],"tags":[],"class_list":["post-47913","post","type-post","status-publish","format-standard","has-post-thumbnail","category-canh-bao-khuyen-nghi","category-tin-noi-bat","category-tin-tuc-su-kien"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/posts\/47913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/comments?post=47913"}],"version-history":[{"count":1,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/posts\/47913\/revisions"}],"predecessor-version":[{"id":47915,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/posts\/47913\/revisions\/47915"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/media\/47914"}],"wp:attachment":[{"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/media?parent=47913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/categories?post=47913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/antoanthongtinhaiphong.gov.vn\/wp-json\/wp\/v2\/tags?post=47913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}