{"id":37646,"date":"2025-04-09T11:29:12","date_gmt":"2025-04-09T09:29:12","guid":{"rendered":"http:\/\/159.69.82.204\/win\/?p=37646"},"modified":"2025-04-10T15:49:04","modified_gmt":"2025-04-10T13:49:04","slug":"outlook-2016-calendar-access-blocked-after-april-2025-update-kb5002700","status":"publish","type":"post","link":"https:\/\/borncity.com\/win\/2025\/04\/09\/outlook-2016-calendar-access-blocked-after-april-2025-update-kb5002700\/","title":{"rendered":"Outlook 2016: Calendar access blocked after April 2025 update KB5002700"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" style=\"margin: 0px 10px 0px 0px; display: inline; float: left;\" src=\"https:\/\/www.borncity.com\/blog\/wp-content\/uploads\/2012\/07\/Office1.jpg\" width=\"55\" height=\"60\" align=\"left\" \/>[<a href=\"https:\/\/www.borncity.com\/blog\/2025\/04\/09\/outlook-2016-kalender-zugriff-nach-april-2025-update-kb5002700-gesperrt\/\" target=\"_blank\" rel=\"noopener\">German<\/a>]On April 8, 2025, Microsoft released the Office update KB5002700 to close a number of vulnerabilities in Microsoft Office 2016. After installing this update, access to the calendar is no longer possible. However, there is a quick workaround.<\/p>\n<p><!--more--><\/p>\n<h2>Office 2016 Update KB5002700<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/vg06.met.vgwort.de\/na\/0cf88b1e0ced4c2984dd174a0d18e419\" alt=\"\" width=\"1\" height=\"1\" \/>Update <a href=\"https:\/\/support.microsoft.com\/en-us\/topic\/description-of-the-security-update-for-office-2016-april-8-2025-kb5002700-a117656e-2724-449f-8245-2d5128de1241\" target=\"_blank\" rel=\"noopener\">KB5002700<\/a> for Microsoft Office 2016 was released on April 8, 2025. It closes a remote code vulnerability. a privilege elevation vulnerability in Microsoft Office, a security feature bypass vulnerability in Microsoft Word, and a remote code execution vulnerability in Microsoft Excel. Here is the list of vulnerabilities that are addressed:<\/p>\n<ul>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-29791\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-29791<\/a><\/li>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-29792\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-29792<\/a><\/li>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-29816\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-29816<\/a><\/li>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-27745\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-27745<\/a><\/li>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-27748\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-27748<\/a><\/li>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-27749\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-27749<\/a><\/li>\n<li><a class=\"ocpExternalLink\" href=\"https:\/\/msrc.microsoft.com\/update-guide\/en-US\/vulnerability\/CVE-2025-27752\" target=\"_blank\" rel=\"noopener\" data-bi-type=\"anchor\">Microsoft Common Vulnerabilities and Exposures CVE-2025-27752<\/a><\/li>\n<\/ul>\n<p>The installation of the security update should actually be necessary.<\/p>\n<h2>Crashes with Outlook calendar<\/h2>\n<p>I got several reports from German users, mention issues with this update. German blog reader J\u00f6rg contacted me on April 9, 2025 and <a href=\"https:\/\/www.borncity.com\/blog\/2025\/04\/09\/microsoft-security-update-summary-8-april-2025\/#comment-213715\" target=\"_blank\" rel=\"noopener\">wrote<\/a> that since the patchday [April 8, 2025] it is no longer possible to access the Outlook calendar. He tested it with Outlook 2016 (16.0.5483.1000 \/ 32Bit) from Office 2016 (volume license \/ MSI installation) in combination with Exchange On-Premises.<\/p>\n<p>J\u00f6rg writes that the problem occurs with several customers. As soon as you click on the calendar in Outlook, the calendar appears very briefly &#8211; then Outlook crashes completely. It does not seem to be due to the Windows version &#8211; both Outlook under Windows 11 24H2 and e.g. Windows 10 22H2 are affected according to J\u00f6rg (thanks for the information). Further users have responded to the blog post, <a href=\"https:\/\/www.borncity.com\/blog\/2025\/04\/09\/microsoft-security-update-summary-8-april-2025\/#comment-213724\" target=\"_blank\" rel=\"noopener\">confirming<\/a> the behavior.\u00a0Another user has <a href=\"https:\/\/www.borncity.com\/blog\/2025\/04\/09\/microsoft-security-update-summary-8-april-2025\/#comment-213728\" target=\"_blank\" rel=\"noopener\">commented<\/a> that this problem is related to the security update.<\/p>\n<h2>Workaround: Disable weather integration<\/h2>\n<p>In the comments to my German edition of this blog post, <a href=\"https:\/\/www.borncity.com\/blog\/2025\/04\/09\/outlook-2016-kalender-zugriff-nach-april-2025-update-kb5002700-gesperrt\/#comment-213734\" target=\"_blank\" rel=\"noopener\">Norman<\/a> and <a href=\"https:\/\/www.borncity.com\/blog\/2025\/04\/09\/outlook-2016-kalender-zugriff-nach-april-2025-update-kb5002700-gesperrt\/#comment-213773\" target=\"_blank\" rel=\"noopener\">Bj\u00f6rn<\/a>, for example, point out that the problem is due to the weather integration in the calendar (thanks for pointing this out). The workaround is quite simple: Open Microsoft Outlook, then select <em>File-&gt; Options-&gt; Calendar<\/em>, scroll to the bottom and uncheck the <em>Show weather<\/em> option.<\/p>\n<p><strong>Addendum:<\/strong> The issues has been fixed with another update, see\u00a0<a href=\"https:\/\/borncity.com\/win\/2025\/04\/10\/office-2016-update-kb5002623-fixes-crashes-in-excel-outlook-word-april-10-2025\/\">Office 2016 update KB5002623 fixes crashes in Excel, Outlook, Word (April 10, 2025)<\/a>.<\/p>\n<p><strong>Similar articles:<\/strong><br \/>\n<a href=\"https:\/\/borncity.com\/win\/2025\/04\/09\/microsoft-security-update-summary-april-8-2025\/\">Microsoft Security Update Summary (April 8, 2025)<\/a><br \/>\n<a href=\"https:\/\/borncity.com\/win\/2025\/04\/09\/patchday-windows-10-11-updates-april-8-2025\/\">Patchday: Windows 10\/11 Updates (April 8, 2025)<\/a><br \/>\n<a href=\"https:\/\/borncity.com\/win\/2025\/04\/09\/patchday-windows-server-updates-8-april-2025\/\">Patchday: Windows Server-Updates (April 8, 2025)<\/a><br \/>\n<a href=\"https:\/\/borncity.com\/win\/2025\/04\/10\/patchday-microsoft-office-updates-april-8-2025\/\">Patchday: Microsoft Office Updates (April 8, 2025)<\/a><\/p>\n<p><a href=\"https:\/\/borncity.com\/win\/2025\/04\/09\/word-excel-2016-crashing-after-april-2025-update-kb5002700\/\">Word\/Excel 2016 crashing after April 2025 update KB5002700<\/a><br \/>\n<a href=\"https:\/\/borncity.com\/win\/2025\/04\/09\/outlook-2016-calendar-access-blocked-after-april-2025-update-kb5002700\/\" rel=\"bookmark\">Outlook 2016: Calendar access blocked after April 2025 update KB5002700<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>[German]On April 8, 2025, Microsoft released the Office update KB5002700 to close a number of vulnerabilities in Microsoft Office 2016. After installing this update, access to the calendar is no longer possible. However, there is a quick workaround.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[463,11,22],"tags":[47,395,195],"class_list":["post-37646","post","type-post","status-publish","format-standard","hentry","category-issue","category-office","category-update","tag-issue","tag-outlook","tag-update"],"_links":{"self":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/37646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/comments?post=37646"}],"version-history":[{"count":6,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/37646\/revisions"}],"predecessor-version":[{"id":37687,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/posts\/37646\/revisions\/37687"}],"wp:attachment":[{"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/media?parent=37646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/categories?post=37646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/borncity.com\/win\/wp-json\/wp\/v2\/tags?post=37646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}