{"id":207224,"date":"2026-01-27T18:27:00","date_gmt":"2026-01-27T23:27:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/01\/27\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw\/"},"modified":"2026-01-28T01:35:12","modified_gmt":"2026-01-28T06:35:12","slug":"fixes-released-for-a-serious-microsoft-office-zero-day-flaw","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/01\/27\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw\/","title":{"rendered":"Fixes released for a serious Microsoft Office zero-day flaw"},"content":{"rendered":"<p><a href=\"https:\/\/www.csoonline.com\/article\/4123146\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw-2.html\">Fixes released for a serious Microsoft Office zero-day flaw<\/a><\/p>\n<p><a href=\"https:\/\/www.csoonline.com\/article\/4123146\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw-2.html\">https:\/\/www.csoonline.com\/article\/4123146\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw-2.html<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-01-27 18:27:00<\/a><\/p>\n<p>Source Domain: <a href=\"www.csoonline.com\">www.csoonline.com<\/a><\/p>\n<p>\u201cIt is important that organizations roll up this update quickly. Until it has been applied, filters on email gateways or endpoint protection signatures may help mitigate the threat.\u201d<\/p>\n<p>Fortunately the vulnerability, CVE-2026-21509, which has a CVSS score of 7.8, is fixed automatically in Office 2021 and up, however, admins should note that these applications need a restart for the patch to take effect. For Office 2016 and Office 2019, there\u2019s a separate patch.<\/p>\n<p>Jack Bicer, director of vulnerability research at Action1, said that for security teams and CISOs \u201cthe urgency is real: don\u2019t wait, prioritize this update immediately, and ensure all Office applications are restarted so the protections take effect without delay.\u201d\u00a0<\/p>\n<p><a href=\"https:\/\/www.csoonline.com\/article\/4123146\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw-2.html\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fixes released for a serious Microsoft Office zero-day flaw https:\/\/www.csoonline.com\/article\/4123146\/fixes-released-for-a-serious-microsoft-office-zero-day-flaw-2.html Publish Date: 2026-01-27 18:27:00 Source&#8230;<\/p>\n","protected":false},"author":1,"featured_media":207225,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.csoonline.com\/wp-content\/uploads\/2026\/01\/4123146-0-44099200-1769556376-shutterstock_editorial_370707185.jpg?quality=50&strip=all&w=1024","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[27],"class_list":["post-207224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/207224"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=207224"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/207224\/revisions"}],"predecessor-version":[{"id":207226,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/207224\/revisions\/207226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/207225"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=207224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=207224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=207224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}