{"id":2365,"date":"2025-10-24T09:32:47","date_gmt":"2025-10-24T13:32:47","guid":{"rendered":"https:\/\/www.yorku.ca\/uit\/infosec\/?p=2365"},"modified":"2025-10-24T09:34:02","modified_gmt":"2025-10-24T13:34:02","slug":"wsus-remote-code-execution-vulnerability-cve-2025-59287","status":"publish","type":"post","link":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/","title":{"rendered":"WSUS Remote Code Execution Vulnerability (CVE-2025-59287)"},"content":{"rendered":"\n<p>Microsoft has released an urgent out-of-band security update to address a critical remote code execution (RCE) vulnerability in Windows Server Update Services (WSUS). The flaw tracked as CVE-2025-59287, poses a direct risk to organizations that utilizes WSUS to manage Windows updates.<\/p>\n\n\n\n<p><strong>Severity level:-<\/strong><\/p>\n\n\n\n<p>CVSS Score: 9.8 \/Critical.<\/p>\n\n\n\n<p><strong>Description<\/strong>:- Windows Server Update Services (WSUS) is a widely used Microsoft tool for managing the distribution of updates in enterprise environments. CVE-2025-59287 is a critical deserialization of untrusted data vulnerability that may allow an unauthorized attacker to execute code on vulnerable machines by sending a specially crafted event to the WSUS server. No user interaction is required to trigger it.<\/p>\n\n\n\n<p><strong>Affected Versions<\/strong><strong>&nbsp;:-&nbsp; &nbsp;<\/strong><\/p>\n\n\n\n<p><strong>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong>Windows Server 2012 through 2025 with WSUS role enabled.<\/p>\n\n\n\n<p><strong>Impact:-<\/strong><\/p>\n\n\n\n<p>Successful exploitation allows attackers to execute arbitrary code with System-level privileges.<\/p>\n\n\n\n<p><strong>Resolution:-<\/strong><\/p>\n\n\n\n<p>Please update to the latest patched versions of Windows Server as provided by Microsoft. If immediate patching is not feasible:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Disable the WSUS role temporarily.<\/li>\n\n\n\n<li>Block inbound traffic to ports 8530 and 8531 to mitigate exposure.<\/li>\n<\/ul>\n\n\n\n<p><strong>Reference:-<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2025-59287\">https:\/\/msrc.microsoft.com\/update-guide\/vulnerability\/CVE-2025-59287<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2025-59287\">https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2025-59287<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/thecyberexpress.com\/microsoft-fixes-cve-2025-59287\">https:\/\/thecyberexpress.com\/microsoft-fixes-cve-2025-59287<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.bleepingcomputer.com\/news\/security\/microsoft-releases-windows-server-emergency-updates-for-critical-wsus-rce-flaw\">https:\/\/www.bleepingcomputer.com\/news\/security\/microsoft-releases-windows-server-emergency-updates-for-critical-wsus-rce-flaw<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft has released an urgent out-of-band security update to address a critical remote code execution (RCE) vulnerability in Windows Server Update Services (WSUS). The flaw tracked as CVE-2025-59287, poses a direct risk to organizations that utilizes WSUS to manage Windows updates. Severity level:- CVSS Score: 9.8 \/Critical. Description:- Windows Server Update Services (WSUS) is a [&hellip;]<\/p>\n","protected":false},"author":2694,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[31],"tags":[],"class_list":["post-2365","post","type-post","status-publish","format-standard","hentry","category-vulnerabilities"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>WSUS Remote Code Execution Vulnerability (CVE-2025-59287) - Information Security<\/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:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WSUS Remote Code Execution Vulnerability (CVE-2025-59287) - Information Security\" \/>\n<meta property=\"og:description\" content=\"Microsoft has released an urgent out-of-band security update to address a critical remote code execution (RCE) vulnerability in Windows Server Update Services (WSUS). The flaw tracked as CVE-2025-59287, poses a direct risk to organizations that utilizes WSUS to manage Windows updates. Severity level:- CVSS Score: 9.8 \/Critical. Description:- Windows Server Update Services (WSUS) is a [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/\" \/>\n<meta property=\"og:site_name\" content=\"Information Security\" \/>\n<meta property=\"article:published_time\" content=\"2025-10-24T13:32:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-10-24T13:34:02+00:00\" \/>\n<meta name=\"author\" content=\"kasingh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"kasingh\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/\"},\"author\":{\"name\":\"kasingh\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#\\\/schema\\\/person\\\/206ba07b2fdc716dbfb162fe95aa60ee\"},\"headline\":\"WSUS Remote Code Execution Vulnerability (CVE-2025-59287)\",\"datePublished\":\"2025-10-24T13:32:47+00:00\",\"dateModified\":\"2025-10-24T13:34:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/\"},\"wordCount\":209,\"publisher\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#organization\"},\"articleSection\":[\"Vulnerabilities\"],\"inLanguage\":\"en-CA\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/\",\"url\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/\",\"name\":\"WSUS Remote Code Execution Vulnerability (CVE-2025-59287) - Information Security\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#website\"},\"datePublished\":\"2025-10-24T13:32:47+00:00\",\"dateModified\":\"2025-10-24T13:34:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/#breadcrumb\"},\"inLanguage\":\"en-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/2025\\\/10\\\/24\\\/wsus-remote-code-execution-vulnerability-cve-2025-59287\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"WSUS Remote Code Execution Vulnerability (CVE-2025-59287)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#website\",\"url\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/\",\"name\":\"Information Security\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-CA\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#organization\",\"name\":\"Information Security\",\"url\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-CA\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/wp-content\\\/uploads\\\/sites\\\/806\\\/2025\\\/05\\\/Image-4.png\",\"contentUrl\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/wp-content\\\/uploads\\\/sites\\\/806\\\/2025\\\/05\\\/Image-4.png\",\"width\":1024,\"height\":1024,\"caption\":\"Information Security\"},\"image\":{\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/#\\\/schema\\\/person\\\/206ba07b2fdc716dbfb162fe95aa60ee\",\"name\":\"kasingh\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-CA\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/c8a14e9f369169760b25636109e5d366baf391d45d3aa148137036b64cc6bb48?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/c8a14e9f369169760b25636109e5d366baf391d45d3aa148137036b64cc6bb48?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/c8a14e9f369169760b25636109e5d366baf391d45d3aa148137036b64cc6bb48?s=96&d=mm&r=g\",\"caption\":\"kasingh\"},\"url\":\"https:\\\/\\\/www.yorku.ca\\\/uit\\\/infosec\\\/author\\\/kasingh\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"WSUS Remote Code Execution Vulnerability (CVE-2025-59287) - Information Security","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:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/","og_locale":"en_US","og_type":"article","og_title":"WSUS Remote Code Execution Vulnerability (CVE-2025-59287) - Information Security","og_description":"Microsoft has released an urgent out-of-band security update to address a critical remote code execution (RCE) vulnerability in Windows Server Update Services (WSUS). The flaw tracked as CVE-2025-59287, poses a direct risk to organizations that utilizes WSUS to manage Windows updates. Severity level:- CVSS Score: 9.8 \/Critical. Description:- Windows Server Update Services (WSUS) is a [&hellip;]","og_url":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/","og_site_name":"Information Security","article_published_time":"2025-10-24T13:32:47+00:00","article_modified_time":"2025-10-24T13:34:02+00:00","author":"kasingh","twitter_card":"summary_large_image","twitter_misc":{"Written by":"kasingh","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/#article","isPartOf":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/"},"author":{"name":"kasingh","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#\/schema\/person\/206ba07b2fdc716dbfb162fe95aa60ee"},"headline":"WSUS Remote Code Execution Vulnerability (CVE-2025-59287)","datePublished":"2025-10-24T13:32:47+00:00","dateModified":"2025-10-24T13:34:02+00:00","mainEntityOfPage":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/"},"wordCount":209,"publisher":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#organization"},"articleSection":["Vulnerabilities"],"inLanguage":"en-CA"},{"@type":"WebPage","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/","url":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/","name":"WSUS Remote Code Execution Vulnerability (CVE-2025-59287) - Information Security","isPartOf":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#website"},"datePublished":"2025-10-24T13:32:47+00:00","dateModified":"2025-10-24T13:34:02+00:00","breadcrumb":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/#breadcrumb"},"inLanguage":"en-CA","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/2025\/10\/24\/wsus-remote-code-execution-vulnerability-cve-2025-59287\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.yorku.ca\/uit\/infosec\/"},{"@type":"ListItem","position":2,"name":"WSUS Remote Code Execution Vulnerability (CVE-2025-59287)"}]},{"@type":"WebSite","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#website","url":"https:\/\/www.yorku.ca\/uit\/infosec\/","name":"Information Security","description":"","publisher":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.yorku.ca\/uit\/infosec\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-CA"},{"@type":"Organization","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#organization","name":"Information Security","url":"https:\/\/www.yorku.ca\/uit\/infosec\/","logo":{"@type":"ImageObject","inLanguage":"en-CA","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#\/schema\/logo\/image\/","url":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-content\/uploads\/sites\/806\/2025\/05\/Image-4.png","contentUrl":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-content\/uploads\/sites\/806\/2025\/05\/Image-4.png","width":1024,"height":1024,"caption":"Information Security"},"image":{"@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.yorku.ca\/uit\/infosec\/#\/schema\/person\/206ba07b2fdc716dbfb162fe95aa60ee","name":"kasingh","image":{"@type":"ImageObject","inLanguage":"en-CA","@id":"https:\/\/secure.gravatar.com\/avatar\/c8a14e9f369169760b25636109e5d366baf391d45d3aa148137036b64cc6bb48?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c8a14e9f369169760b25636109e5d366baf391d45d3aa148137036b64cc6bb48?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/c8a14e9f369169760b25636109e5d366baf391d45d3aa148137036b64cc6bb48?s=96&d=mm&r=g","caption":"kasingh"},"url":"https:\/\/www.yorku.ca\/uit\/infosec\/author\/kasingh\/"}]}},"taxonomy_info":{"category":[{"value":31,"label":"Vulnerabilities"}]},"featured_image_src_large":false,"author_info":{"display_name":"kasingh","author_link":"https:\/\/www.yorku.ca\/uit\/infosec\/author\/kasingh\/"},"comment_info":0,"category_info":[{"term_id":31,"name":"Vulnerabilities","slug":"vulnerabilities","term_group":0,"term_taxonomy_id":31,"taxonomy":"category","description":"","parent":0,"count":18,"filter":"raw","cat_ID":31,"category_count":18,"category_description":"","cat_name":"Vulnerabilities","category_nicename":"vulnerabilities","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/posts\/2365","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/users\/2694"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/comments?post=2365"}],"version-history":[{"count":1,"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/posts\/2365\/revisions"}],"predecessor-version":[{"id":2366,"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/posts\/2365\/revisions\/2366"}],"wp:attachment":[{"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/media?parent=2365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/categories?post=2365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/infosec\/wp-json\/wp\/v2\/tags?post=2365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}