{"id":2004,"date":"2026-03-19T07:06:21","date_gmt":"2026-03-19T07:06:21","guid":{"rendered":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/"},"modified":"2026-03-19T07:06:21","modified_gmt":"2026-03-19T07:06:21","slug":"cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks","status":"publish","type":"post","link":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/","title":{"rendered":"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks"},"content":{"rendered":"<div>The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, stating they have been actively exploited in the wild.<br \/>\nThe vulnerabilities in question are as follows &#8211;<\/p>\n<p>CVE-2025-66376 (CVSS score: 7.2) &#8211; A stored cross-site scripting<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, stating they have been actively exploited in the wild. The vulnerabilities in question are as follows &#8211; CVE-2025-66376 (CVSS score: 7.2) &#8211; A stored cross-site scripting<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[90],"tags":[91],"class_list":["post-2004","post","type-post","status-publish","format-standard","hentry","category-cybersecurity","tag-cybersecurity"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks - Imperative Business Ventures Limited<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks - Imperative Business Ventures Limited\" \/>\n<meta property=\"og:description\" content=\"The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, stating they have been actively exploited in the wild. The vulnerabilities in question are as follows &#8211; CVE-2025-66376 (CVSS score: 7.2) &#8211; A stored cross-site scripting\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\" \/>\n<meta property=\"og:site_name\" content=\"Imperative Business Ventures Limited\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-19T07:06:21+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/blog.ibvl.in\/#\/schema\/person\/55b87b72a56b1bbe9295fe5ef7a20b02\"},\"headline\":\"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks\",\"datePublished\":\"2026-03-19T07:06:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\"},\"wordCount\":69,\"keywords\":[\"Cybersecurity\"],\"articleSection\":[\"Cybersecurity\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\",\"url\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\",\"name\":\"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks - Imperative Business Ventures Limited\",\"isPartOf\":{\"@id\":\"https:\/\/blog.ibvl.in\/#website\"},\"datePublished\":\"2026-03-19T07:06:21+00:00\",\"author\":{\"@id\":\"https:\/\/blog.ibvl.in\/#\/schema\/person\/55b87b72a56b1bbe9295fe5ef7a20b02\"},\"breadcrumb\":{\"@id\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/blog.ibvl.in\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blog.ibvl.in\/#website\",\"url\":\"https:\/\/blog.ibvl.in\/\",\"name\":\"Imperative Business Ventures Limited\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blog.ibvl.in\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blog.ibvl.in\/#\/schema\/person\/55b87b72a56b1bbe9295fe5ef7a20b02\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/blog.ibvl.in\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/4d20b2cd313e4417a599678e950e6fb7d4dfa178a72f2b769335a08aaa615aa9?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/4d20b2cd313e4417a599678e950e6fb7d4dfa178a72f2b769335a08aaa615aa9?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"sameAs\":[\"https:\/\/blog.ibvl.in\"],\"url\":\"https:\/\/blog.ibvl.in\/index.php\/author\/admin_hcbs9yw6\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks - Imperative Business Ventures Limited","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/","og_locale":"en_US","og_type":"article","og_title":"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks - Imperative Business Ventures Limited","og_description":"The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has urged government agencies to apply patches for two security flaws impacting Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, stating they have been actively exploited in the wild. The vulnerabilities in question are as follows &#8211; CVE-2025-66376 (CVSS score: 7.2) &#8211; A stored cross-site scripting","og_url":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/","og_site_name":"Imperative Business Ventures Limited","article_published_time":"2026-03-19T07:06:21+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/#article","isPartOf":{"@id":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/"},"author":{"name":"admin","@id":"https:\/\/blog.ibvl.in\/#\/schema\/person\/55b87b72a56b1bbe9295fe5ef7a20b02"},"headline":"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks","datePublished":"2026-03-19T07:06:21+00:00","mainEntityOfPage":{"@id":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/"},"wordCount":69,"keywords":["Cybersecurity"],"articleSection":["Cybersecurity"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/","url":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/","name":"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks - Imperative Business Ventures Limited","isPartOf":{"@id":"https:\/\/blog.ibvl.in\/#website"},"datePublished":"2026-03-19T07:06:21+00:00","author":{"@id":"https:\/\/blog.ibvl.in\/#\/schema\/person\/55b87b72a56b1bbe9295fe5ef7a20b02"},"breadcrumb":{"@id":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/blog.ibvl.in\/index.php\/2026\/03\/19\/cisa-warns-of-zimbra-sharepoint-flaw-exploits-cisco-zero-day-hit-in-ransomware-attacks\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/blog.ibvl.in\/"},{"@type":"ListItem","position":2,"name":"CISA Warns of Zimbra, SharePoint Flaw Exploits; Cisco Zero-Day Hit in Ransomware Attacks"}]},{"@type":"WebSite","@id":"https:\/\/blog.ibvl.in\/#website","url":"https:\/\/blog.ibvl.in\/","name":"Imperative Business Ventures Limited","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blog.ibvl.in\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/blog.ibvl.in\/#\/schema\/person\/55b87b72a56b1bbe9295fe5ef7a20b02","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/blog.ibvl.in\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/4d20b2cd313e4417a599678e950e6fb7d4dfa178a72f2b769335a08aaa615aa9?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4d20b2cd313e4417a599678e950e6fb7d4dfa178a72f2b769335a08aaa615aa9?s=96&d=mm&r=g","caption":"admin"},"sameAs":["https:\/\/blog.ibvl.in"],"url":"https:\/\/blog.ibvl.in\/index.php\/author\/admin_hcbs9yw6\/"}]}},"_links":{"self":[{"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/posts\/2004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/comments?post=2004"}],"version-history":[{"count":0,"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/posts\/2004\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/media?parent=2004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/categories?post=2004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ibvl.in\/index.php\/wp-json\/wp\/v2\/tags?post=2004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}