{"id":14700,"date":"2026-01-28T11:01:29","date_gmt":"2026-01-28T02:01:29","guid":{"rendered":"https:\/\/m365jp.net\/?p=14700"},"modified":"2026-01-28T11:06:32","modified_gmt":"2026-01-28T02:06:32","slug":"mc1223281-an-updated-version-of-the-january-2026-scan-cab-is-available","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-01-28-mc1223281-an-updated-version-of-the-january-2026-scan-cab-is-available","title":{"rendered":"MC1223281 | An updated version of the January 2026 Scan Cab is available"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1223281 | An updated version of the January 2026 Scan Cab is available<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>stayInformed<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>01\/28\/2026 01:44:17<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>01\/28\/2026 01:44:16<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>01\/28\/2027 01:44:16<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<div><b>IMPORTANT<\/b>: This notice is only relevant for environments where:<\/div>\n<ul>\n<li>Microsoft Office is used<\/li>\n<li>Scan Cab is used to check for update compliance<\/li>\n<li>The January 2026 Scan Cab was deployed before 2:30 PM PT on January 27, 2026.<\/li>\n<\/ul>\n<div>  <\/div>\n<div>An updated version of the January 2026 Scan Cab was made available at 2:30 PM PT on January 27, 2026. This Scan Cab includes new metadata corresponding to new updates for Microsoft Office 2016.<\/div>\n<div>  <\/div>\n<div>The new security updates for Microsoft Office released January 26, 2026, included additional protections to address&nbsp;<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-21509\" rel=\"noopener noreferrer\" target=\"_blank\"><u>CVE-2026-21509<\/u><\/a><b><em>.  <\/em><\/b>Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally. See the additional information section of this message for details.<\/div>\n<div>  <\/div>\n<div><b>How this affects your organization:<\/b><\/div>\n<div>IT administrators who downloaded the Scan Cab before 2:30 PM PT on January 27, 2026, should re-acquire and re-deploy it if the Scan Cab is used to assess updates for environments where Microsoft Office is used.<\/div>\n<div>&nbsp;<\/div>\n<div>No action is required on environments where Scan Cab is not employed and do not have Microsoft Office installed. However, please note that there might be non-Microsoft applications that utilize Scan Cab. Review the documentation for any software and update   deployment tools that might be in use for your organization, to understand if this is applicable in your environment.<\/div>\n<div>&nbsp;<\/div>\n<div><b>What you need to do to prepare:<\/b><\/div>\n<div>Administrators can download&nbsp;the <a href=\"https:\/\/go.microsoft.com\/fwlink\/?LinkID=74689\" rel=\"noopener noreferrer\" target=\"_blank\">  updated Scan Cab here<\/a>. Visit <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-21509\" rel=\"noopener noreferrer\" target=\"_blank\">  CVE-2026-21509<\/a> to find download links, release notes, and appropriate action for affected versions of Microsoft Office. For detailed guidance, see the Additional information section below.<\/div>\n<div>  <\/div>\n<div><b>Additional information:<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/go.microsoft.com\/fwlink\/?LinkID=74689\" rel=\"noopener noreferrer\" target=\"_blank\">Updated Scan Cab: Download the new Scan Cab here<\/a><\/li>\n<li><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-21509\" rel=\"noopener noreferrer\" target=\"_blank\">CVE-2026-21509<\/a>: Microsoft Office Security Feature Bypass Vulnerability<\/li>\n<li><a href=\"https:\/\/support.microsoft.com\/help\/5002713\" rel=\"noopener noreferrer\" target=\"_blank\">Security Update for Microsoft Office 2016 (KB5002713)<\/a><\/li>\n<li><a href=\"https:\/\/techcommunity.microsoft.com\/t5\/windows-it-pro-blog\/announcing-a-smaller-wsus-scan-cab\/ba-p\/2928256?msclkid=256145ccd0c011ec9266b53af8d0aca1\" rel=\"noopener noreferrer\" target=\"_blank\">Announcing a smaller WSUS Scan Cab &#8211; Microsoft Tech Community<\/a>:   Learn more about WSUS and the Scan Cab process<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/win32\/wua_sdk\/using-wua-to-scan-for-updates-offline?tabs=vbscript\" rel=\"noopener noreferrer\" target=\"_blank\">Using WUA to Scan for Updates Offline &#8211; Win32 apps | Microsoft Docs<\/a>: Windows Update Agent (WUA)   can be used to scan computers for security updates without connecting to Windows Update<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows-server\/administration\/windows-server-update-services\/manage\/wsus-and-the-catalog-site\" rel=\"noopener noreferrer\" target=\"_blank\">WSUS and the Catalog Site | Microsoft Docs<\/a>: The Catalog Site used by WSUS to   import updates and drivers<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<tr>\n<th>Machine Translation<\/th>\n<td>\n<div><b>\u91cd\u8981:<\/b>\u3053\u306e\u901a\u77e5\u306f\u4ee5\u4e0b\u306e\u74b0\u5883\u306b\u306e\u307f\u9069\u7528\u3055\u308c\u307e\u3059:<\/div>\n<ul>\n<li>Microsoft Office\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059<\/li>\n<li>Scan Cab\u306f\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u9069\u5408\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059<\/li>\n<li>2026\u5e741\u6708\u306e\u30b9\u30ad\u30e3\u30f3\u30ad\u30e3\u30d6\u306f\u30012026\u5e741\u670827\u65e5\u5348\u5f8c2\u664230\u5206(\u592a\u5e73\u6d0b\u6642\u9593)\u524d\u306b\u5c55\u958b\u3055\u308c\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n<div>  <\/div>\n<div>2026\u5e741\u6708\u7248\u306eScan Cab\u306e\u66f4\u65b0\u7248\u306f\u30012026\u5e741\u670827\u65e5\u5348\u5f8c2\u664230\u5206(\u592a\u5e73\u6d0b\u6642\u9593)\u306b\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u30b9\u30ad\u30e3\u30f3\u30ad\u30e3\u30d6\u306b\u306f\u3001Microsoft Office 2016\u306e\u65b0\u3057\u3044\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u5bfe\u5fdc\u3059\u308b\u65b0\u3057\u3044\u30e1\u30bf\u30c7\u30fc\u30bf\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/div>\n<div>  <\/div>\n<div>2026\u5e741\u670826\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305fMicrosoft Office\u306e\u65b0\u3057\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u306f\u3001<a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-21509\" rel=\"noopener noreferrer\" target=\"_blank\"><u>CVE-2026-21509<\/u><\/a>\u306b\u5bfe\u5fdc\u3059\u308b&nbsp;\u305f\u3081\u306e\u8ffd\u52a0\u4fdd\u8b77\u304c\u542b\u307e\u308c<b><em>\u3066\u3044\u307e\u3057\u305f\u3002  <\/em><\/b>Microsoft Office\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5224\u65ad\u306b\u304a\u3044\u3066\u4fe1\u983c\u3067\u304d\u306a\u3044\u5165\u529b\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u6b63\u306a\u653b\u6483\u8005\u304c\u30ed\u30fc\u30ab\u30eb\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002\u8a73\u7d30\u306f\u3053\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u8ffd\u52a0\u60c5\u5831\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>  <\/div>\n<div><b>\u3053\u308c\u304c\u3042\u306a\u305f\u306e\u7d44\u7e54\u306b\u4e0e\u3048\u308b\u5f71\u97ff:<\/b><\/div>\n<div>2026\u5e741\u670827\u65e5\u5348\u5f8c2\u664230\u5206(\u592a\u5e73\u6d0b\u6642\u9593)\u524d\u306bScan Cab\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u305fIT\u7ba1\u7406\u8005\u306f\u3001Microsoft Office\u3092\u4f7f\u7528\u3059\u308b\u74b0\u5883\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u8a55\u4fa1\u306bScan Cab\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u518d\u53d6\u5f97\u3057\u3066\u518d\u5c55\u958b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>&nbsp;<\/div>\n<div>Scan Cab\u304c\u4f7f\u7528\u3055\u308c\u3066\u304a\u3089\u305a\u3001Microsoft Office\u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u306a\u3044\u74b0\u5883\u3067\u306f\u3001\u4f55\u306e\u5bfe\u5fdc\u3082\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001Scan Cab\u3092\u5229\u7528\u3059\u308bMicrosoft\u4ee5\u5916\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3082\u3042\u308b\u5834\u5408\u304c\u3042\u308b\u3053\u3068\u306b\u3054\u6ce8\u610f\u304f\u3060\u3055\u3044\u3002\u7d44\u7e54\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u78ba\u8a8d\u3057\u3001\u5c0e\u5165\u30c4\u30fc\u30eb\u3092\u66f4\u65b0\u3057\u3066\u3001\u74b0\u5883\u306b\u9069\u7528\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>&nbsp;<\/div>\n<div><b>\u6e96\u5099\u306e\u305f\u3081\u306b\u3084\u308b\u3079\u304d\u3053\u3068:<\/b><\/div>\n<div>\u7ba1\u7406\u8005\u306f\u66f4\u65b0\u3055\u308c\u305f\u30b9\u30ad\u30e3\u30f3 <a href=\"https:\/\/go.microsoft.com\/fwlink\/?LinkID=74689\" rel=\"noopener noreferrer\" target=\"_blank\">  \u30ad\u30e3\u30d6\u3092\u3053\u3061\u3089\u304b\u3089<\/a>\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9&nbsp;\u3067\u304d\u307e\u3059\u3002Microsoft Office\u306e\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u5bfe\u3059\u308b\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30ea\u30f3\u30af\u3001\u30ea\u30ea\u30fc\u30b9\u30ce\u30fc\u30c8\u3001\u9069\u5207\u306a\u5bfe\u5fdc\u306b\u3064\u3044\u3066\u306f  <a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-21509\" rel=\"noopener noreferrer\" target=\"_blank\">  \u3001CVE-2026-21509<\/a> \u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002\u8a73\u7d30\u306a\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u4e0b\u8a18\u306e\u8ffd\u52a0\u60c5\u5831\u30bb\u30af\u30b7\u30e7\u30f3\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/div>\n<div>  <\/div>\n<div><b>\u8ffd\u52a0\u60c5\u5831:<\/b><\/div>\n<ul>\n<li><a href=\"https:\/\/go.microsoft.com\/fwlink\/?LinkID=74689\" rel=\"noopener noreferrer\" target=\"_blank\">\u66f4\u65b0\u3055\u308c\u305f\u30b9\u30ad\u30e3\u30f3\u30ad\u30e3\u30d6:\u65b0\u3057\u3044\u30b9\u30ad\u30e3\u30f3\u30ad\u30e3\u30d6\u306f\u3053\u3061\u3089\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059<\/a><\/li>\n<li><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2026-21509\" rel=\"noopener noreferrer\" target=\"_blank\">CVE-2026-21509<\/a>:Microsoft Office\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u30d0\u30a4\u30d1\u30b9\u8106\u5f31\u6027<\/li>\n<li><a href=\"https:\/\/support.microsoft.com\/help\/5002713\" rel=\"noopener noreferrer\" target=\"_blank\">Microsoft Office 2016(KB5002713)\u5411\u3051\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/a><\/li>\n<li><a href=\"https:\/\/techcommunity.microsoft.com\/t5\/windows-it-pro-blog\/announcing-a-smaller-wsus-scan-cab\/ba-p\/2928256?msclkid=256145ccd0c011ec9266b53af8d0aca1\" rel=\"noopener noreferrer\" target=\"_blank\">\u3088\u308a\u5c0f\u578b\u306eWSUS Scan Cab\u306e\u767a\u8868 &#8211; Microsoft Tech Community<\/a>:WSUS\u3068Scan   Cab\u30d7\u30ed\u30bb\u30b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u306f\u3053\u3061\u3089<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows\/win32\/wua_sdk\/using-wua-to-scan-for-updates-offline?tabs=vbscript\" rel=\"noopener noreferrer\" target=\"_blank\">WUA\u3092\u4f7f\u3063\u3066\u30aa\u30d5\u30e9\u30a4\u30f3\u3067\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3059\u308b\u65b9\u6cd5 &#8211; Win32\u30a2\u30d7\u30ea |Microsoft Docs<\/a>: Windows Update Agent(WUA)\u306f\u3001Windows Update\u306b\u63a5\u7d9a\u305b\u305a\u306b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u30b9\u30ad\u30e3\u30f3\u3067\u304d\u307e\u3059<\/li>\n<li><a href=\"https:\/\/learn.microsoft.com\/windows-server\/administration\/windows-server-update-services\/manage\/wsus-and-the-catalog-site\" rel=\"noopener noreferrer\" target=\"_blank\">WSUS\u3068\u30ab\u30bf\u30ed\u30b0\u30b5\u30a4\u30c8 |Microsoft Docs<\/a>:WSUS\u304c\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3084\u30c9\u30e9\u30a4\u30d0\u30fc\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u30ab\u30bf\u30ed\u30b0\u30b5\u30a4\u30c8<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1223281 | An updated version of the January 2026 Scan Cab is available Classification stayInformed Last Upda [&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-14700","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14700","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=14700"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/14700\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=14700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=14700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=14700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}