{"id":135428,"date":"2026-08-12T08:48:35","date_gmt":"2026-08-11T23:48:35","guid":{"rendered":"https:\/\/softantenna.com\/blog\/?p=135428"},"modified":"2026-08-12T08:48:35","modified_gmt":"2026-08-11T23:48:35","slug":"windows-11-version-25h2-24h2-kb5121003-monthly","status":"publish","type":"post","link":"https:\/\/softantenna.com\/blog\/windows-11-version-25h2-24h2-kb5121003-monthly\/","title":{"rendered":"Windows 11\u306e\u6708\u4f8b\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0KB5121003\u304c\u516c\u958b - 2026\u5e748\u6708\u306e\u6708\u4f8b\u66f4\u65b0\u3002\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u95a2\u9023\u306e\u6539\u5584\u304c\u9032\u884c\u4e2d"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2026\/08\/s_20260812-_084310.webp\" alt=\"\" width=\"1280\" height=\"800\" class=\"aligncenter size-full wp-image-135430\" \/><\/p>\n<p>Microsoft\u306f8\u670811\u65e5(\u73fe\u5730\u6642\u9593)\u3001\u6bce\u6708\u7c73\u56fd\u6642\u9593\u306e\u7b2c2\u706b\u66dc\u65e5\u306b\u63d0\u4f9b\u3057\u3066\u3044\u308b\u6708\u4f8b\u66f4\u65b0\u306e\u4e00\u74b0\u3068\u3057\u3066\u3001Windows 11 Version 25H2\/24H2\u7528\u306e\u7d2f\u7a4d\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<a href=\"https:\/\/support.microsoft.com\/en-US\/servicing\/os\/windows-11\/2026\/08\/kb5121003-windows-11-24h2-25h2-security-update\">KB5121003<\/a>\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u4e3b\u306b\u30b7\u30b9\u30c6\u30e0\u306e\u54c1\u8cea\u3092\u6539\u5584\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u554f\u984c\u3092\u4fee\u6b63\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u81ea\u52d5\u7684\u306b\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u307e\u3059\u304c\u3001Windows Update\u307e\u305f\u306fMicrosoft Update Catalog\u3092\u5229\u7528\u3057\u3066\u624b\u52d5\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u5909\u66f4\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059(\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u5185\u5bb9\u306f<a href=\"https:\/\/www.microsoft.com\/en-us\/msrc\/blog\/category?cat=Japan%20Security%20Team\">\u65e5\u672cMicrosoft\u306e\u30d6\u30ed\u30b0<\/a>\u3067\u53c2\u7167\u3067\u304d\u307e\u3059)\u3002<\/p>\n<h2>August 11, 2026\u2014KB5121003 (OS Builds 26200.9168 and 26100.9168)<\/h2>\n<p>Windows 11 Version 25H2\/24H2\u7528\u306e\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0<a href=\"https:\/\/support.microsoft.com\/en-US\/servicing\/os\/windows-11\/2026\/08\/kb5121003-windows-11-24h2-25h2-security-update\">KB5121003<\/a>\u3067\u306f\u30017\u670828\u65e5\u306b\u516c\u958b\u3055\u308c\u305f<a href=\"https:\/\/support.microsoft.com\/en-us\/servicing\/os\/windows-11\/2026\/07\/july-28-2026-kb5101684-preview\">KB5101684<\/a>\u30017\u670818\u65e5\u306b\u516c\u958b\u3055\u308c\u305f<a href=\"https:\/\/support.microsoft.com\/en-us\/servicing\/os\/windows-11\/2026\/07\/kb5121767-out-of-band\">KB5121767<\/a>\u30017\u670814\u65e5\u306b\u516c\u958b\u3055\u308c\u305f<a href=\"https:\/\/support.microsoft.com\/en-US\/servicing\/os\/windows-11\/2026\/07\/july-14-2026-kb5101650-os-builds-26200-8875-and-26100-8875\">KB5101650<\/a>\u306e\u5185\u5bb9\u306b\u52a0\u3048\u3001\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u95a2\u9023\u306e\u66f4\u65b0\u304c\u884c\u308f\u308c\u3001\u3088\u308a\u591a\u304f\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u65b0\u3057\u3044\u30bb\u30ad\u30e5\u30a2\u30d6\u30fc\u30c8\u8a3c\u660e\u66f8\u3092\u81ea\u52d5\u3067\u53d7\u3051\u53d6\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u8a3c\u660e\u66f8\u306e\u5c55\u958b\u306f\u4eca\u5f8c\u6570\u304b\u6708\u306b\u308f\u305f\u308a\u6bb5\u968e\u7684\u306b\u9032\u3080\u4e88\u5b9a\u3067\u3059\u3002\u307e\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u66f4\u65b0\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<h3>\u6539\u826f\u3068\u4fee\u6b63<\/h3>\n<blockquote>\n<ul>\n<li>\n<strong>[Security updates]<\/strong> This update provides security improvements. For more information about the security vulnerabilities resolved by this update, see the <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/releaseNote\/2026-Aug\">Security Update Guide<\/a>\n<\/li>\n<li>\n<strong>[Secure Boot]<\/strong> This update includes additional high confidence device targeting data, increasing coverage of devices eligible to automatically receive <a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/windows-devices-for-home-users-businesses-and-schools-with-microsoft-managed-updates-29bfd847-5855-49f1-bb94-e18497fe2315\">new Secure Boot certificates<\/a>. Certificate deployment via Windows updates continues across supported PCs and non-managed business devices in the coming months.<\/li>\n<\/ul>\n<\/blockquote>\n<h3>\u65e2\u77e5\u306e\u4e0d\u5177\u5408<\/h3>\n<p>\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u306f\u65e2\u77e5\u306e\u4e0d\u5177\u5408\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u66f4\u65b0\u30d7\u30ed\u30b0\u30e9\u30e0\u306fWindows Update\u306e\u4ed6\u3001<a href=\"https:\/\/www.catalog.update.microsoft.com\/Search.aspx?q=KB5121003\">Microsoft Update Catalog<\/a>\u3001Windows Server Update Services(WSUS)\u3092\u5229\u7528\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft\u306f8\u670811\u65e5(\u73fe\u5730\u6642\u9593)\u3001\u6bce\u6708\u7c73\u56fd\u6642\u9593\u306e\u7b2c2\u706b\u66dc\u65e5\u306b\u63d0\u4f9b\u3057\u3066\u3044\u308b\u6708\u4f8b\u66f4\u65b0\u306e\u4e00\u74b0\u3068\u3057\u3066\u3001Windows 11 Version 25H2\/24H2\u7528\u306e\u7d2f\u7a4d\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8KB5121003\u3092\u30ea\u30ea\u30fc\u30b9\u3057\u307e\u3057\u305f\u3002  [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":89924,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[3],"tags":[4315,3298,4387],"class_list":["post-135428","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-windows","tag-kb","tag-windows","tag-windows11"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/135428","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=135428"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/135428\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/89924"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=135428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=135428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=135428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}