{"id":16756,"date":"2026-06-10T03:01:50","date_gmt":"2026-06-09T18:01:50","guid":{"rendered":"https:\/\/m365jp.net\/?p=16756"},"modified":"2026-06-10T03:02:58","modified_gmt":"2026-06-09T18:02:58","slug":"mc1318295-updated-take-action-mitigation-guidance-updated-with-a-new-script-for-cve-2026-45585","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-06-10-mc1318295-updated-take-action-mitigation-guidance-updated-with-a-new-script-for-cve-2026-45585","title":{"rendered":"MC1318295 | (Updated) Take action: Mitigation guidance updated with a new script for CVE-2026-45585"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1318295 | (Updated) Take action: Mitigation guidance updated with a new script for CVE-2026-45585<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>preventOrFixIssue<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>06\/09\/2026 17:28:09<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>06\/09\/2026 17:28:07<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>06\/09\/2027 17:28:07<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<div>Updated June 9, 2026: This message has been updated to reflect the availability of the June 2026 security update, which addresses CVE\u20112026\u201145585. If you have applied the temporary mitigations documented prior to this update\u2019s release, you do not need to   revert it once you install the update.<\/div>\n<div>  <\/div>\n<div>Microsoft has updated the mitigation guidance in <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-45585\" rel=\"noopener noreferrer\" target=\"_blank\">  CVE-2026-45585<\/a>, a Windows BitLocker security feature bypass vulnerability. The June 2026 security update that addresses this vulnerability is now available. Note that a limited set of Windows versions are affected: Windows 11, versions 26H1, 25H2, and 24H2,   and Windows Server 2025.<\/div>\n<div>  <\/div>\n<div><b>When will this happen:<\/b><\/div>\n<div>The June 2026 security update and the updated mitigation guidance are available now.<\/div>\n<div>  <\/div>\n<div><b>How this will affect your organization:<\/b><\/div>\n<div>Microsoft recommends applying the June 2026 security update to address this vulnerability. Windows devices that use BitLocker may be exposed if mitigations are not applied. Organizational environments that previously implemented the manual mitigation steps   or the mitigation script do not need to take additional action, and the previously applied mitigation does not need to be reverted.<\/div>\n<div><b>&nbsp;<\/b><\/div>\n<div><b>What you need to do to prepare:<\/b><\/div>\n<div>Organizational environments using BitLocker on affected Windows versions should review the updated guidance in the Microsoft Security Update Guide to determine the appropriate action for their environment.<\/div>\n<div>  <\/div>\n<div><b>Additional information:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-45585\" rel=\"noopener noreferrer\" target=\"_blank\">CVE-2026-45585: Windows BitLocker Security Feature Bypass Vulnerability<\/a><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<div>2026\u5e746\u67089\u65e5\u66f4\u65b0:\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3001CVE-2026-45585\u306b\u95a2\u3059\u308b2026\u5e746\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u5229\u7528\u53ef\u80fd\u6027\u3092\u53cd\u6620\u3057\u3066\u66f4\u65b0\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u30ea\u30ea\u30fc\u30b9\u524d\u306b\u8a18\u8f09\u3055\u308c\u305f\u4e00\u6642\u7684\u306a\u7de9\u548c\u7b56\u3092\u9069\u7528\u3057\u3066\u3044\u308c\u3070\u3001\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u5f8c\u306b\u5143\u306b\u623b\u3059\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/div>\n<div>  <\/div>\n<div>Microsoft\u306f <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-45585\" rel=\"noopener noreferrer\" target=\"_blank\">  CVE-2026-45585<\/a>\u3068\u3044\u3046Windows BitLocker\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u56de\u907f\u8106\u5f31\u6027\u306e\u7de9\u548c\u30ac\u30a4\u30c0\u30f3\u30b9\u3092\u66f4\u65b0\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u8106\u5f31\u6027\u3092\u89e3\u6d88\u3059\u308b2026\u5e746\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u304c\u73fe\u5728\u5229\u7528\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u306a\u304a\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308bWindows\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3059:Windows 11\u3001\u30d0\u30fc\u30b8\u30e7\u30f326H1\u300125H2\u300124H2\u3001\u304a\u3088\u3073Windows Server 2025\u3067\u3059\u3002<\/div>\n<div>  <\/div>\n<div><b>\u3053\u308c\u306f\u3044\u3064\u5b9f\u73fe\u3057\u307e\u3059\u304b:<\/b><\/div>\n<div>2026\u5e746\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3068\u66f4\u65b0\u3055\u308c\u305f\u7de9\u548c\u30ac\u30a4\u30c0\u30f3\u30b9\u306f\u73fe\u5728\u5165\u624b\u53ef\u80fd\u3067\u3059\u3002<\/div>\n<div>  <\/div>\n<div><b>\u3053\u308c\u304c\u3042\u306a\u305f\u306e\u7d44\u7e54\u306b\u3069\u306e\u3088\u3046\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u304b:<\/b><\/div>\n<div>\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u306f\u3001\u3053\u306e\u8106\u5f31\u6027\u3092\u89e3\u6d88\u3059\u308b\u305f\u3081\u306b2026\u5e746\u6708\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002BitLocker\u3092\u4f7f\u7528\u3059\u308bWindows\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u7de9\u548c\u7b56\u304c\u9069\u7528\u3055\u308c\u306a\u3044\u5834\u5408\u306b\u9732\u51fa\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u624b\u52d5\u306e\u7de9\u548c\u624b\u9806\u3084\u7de9\u548c\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4ee5\u524d\u306b\u5b9f\u88c5\u3057\u305f\u7d44\u7e54\u74b0\u5883\u306f\u8ffd\u52a0\u306e\u63aa\u7f6e\u3092\u53d6\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001\u4ee5\u524d\u9069\u7528\u3055\u308c\u305f\u7de9\u548c\u7b56\u3092\u5143\u306b\u623b\u3059\u5fc5\u8981\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/div>\n<div><b>&nbsp;<\/b><\/div>\n<div><b>\u6e96\u5099\u306e\u305f\u3081\u306b\u3084\u308b\u3079\u304d\u3053\u3068:<\/b><\/div>\n<div>\u5f71\u97ff\u3092\u53d7\u3051\u305fWindows\u30d0\u30fc\u30b8\u30e7\u30f3\u3067BitLocker\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u7d44\u7e54\u74b0\u5883\u306f\u3001Microsoft Security Update Guide\u306e\u66f4\u65b0\u3055\u308c\u305f\u30ac\u30a4\u30c0\u30f3\u30b9\u3092\u78ba\u8a8d\u3057\u3001\u74b0\u5883\u306b\u9069\u3057\u305f\u5bfe\u5fdc\u3092\u5224\u65ad\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>  <\/div>\n<div><b>\u8ffd\u52a0\u60c5\u5831:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-45585\" rel=\"noopener noreferrer\" target=\"_blank\">CVE-2026-45585:Windows BitLocker\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u306e\u56de\u907f\u8106\u5f31\u6027<\/a><\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1318295 | (Updated) Take action: Mitigation guidance updated with a new script for CVE-2026-45585 Classifica [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-16756","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=16756"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/16756\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=16756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=16756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=16756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}