{"id":53936,"date":"2025-06-21T17:09:45","date_gmt":"2025-06-21T17:09:45","guid":{"rendered":""},"modified":"2025-09-08T17:18:47","modified_gmt":"2025-09-08T23:18:47","slug":"cve-2025-47167-microsoft-office-type-confusion-vulnerability-leading-to-unauthorized-local-code-execution","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-47167-microsoft-office-type-confusion-vulnerability-leading-to-unauthorized-local-code-execution\/","title":{"rendered":"<strong>CVE-2025-47167: Microsoft Office Type Confusion Vulnerability Leading to Unauthorized Local Code Execution<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In this article, we will delve into the details of a severe vulnerability that affects Microsoft Office, one of the world&#8217;s most widely used office productivity software suites. The vulnerability, identified as CVE-2025-47167, involves a type confusion flaw that could potentially allow an unauthorized attacker to execute code locally on a victim&#8217;s system.<br \/>\nThis <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47166-critical-deserialization-vulnerability-in-microsoft-office-sharepoint\/\"  data-wpil-monitor-id=\"61082\">vulnerability matters because of the ubiquitous nature of Microsoft Office<\/a>. With millions of users worldwide, both in personal and professional settings, a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31424-sql-injection-vulnerability-in-wp-lead-capturing-pages-plugin\/\"  data-wpil-monitor-id=\"60220\">vulnerability of this nature could potentially lead<\/a> to substantial data breaches and unauthorized system access. This underscores the need for rigorous cybersecurity measures and the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4954-critical-file-upload-vulnerability-in-axle-demo-importer-wordpress-plugin\/\"  data-wpil-monitor-id=\"60714\">importance of staying informed about the latest vulnerabilities<\/a> and their mitigation strategies.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-47167<br \/>\nSeverity: High (CVSS: 8.4)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: Unauthorized local code execution <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5901-buffer-overflow-vulnerability-in-totolink-t10-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"60522\">leading to potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2180960873\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47172-sql-injection-vulnerability-in-microsoft-office-sharepoint\/\"  data-wpil-monitor-id=\"61104\">Microsoft Office<\/a> | All Versions Up To Latest Patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5959-high-severity-type-confusion-vulnerability-in-google-chrome\/\"  data-wpil-monitor-id=\"60940\">vulnerability originates from a type confusion<\/a> flaw in Microsoft Office. An attacker can craft a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32717-heap-based-buffer-overflow-in-microsoft-office-word-leading-to-unauthorized-code-execution\/\"  data-wpil-monitor-id=\"61825\">Microsoft Office<\/a> document that abuses this flaw, effectively tricking the software into treating one type of data as if it were a different type. Once the document is opened by a user, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22455-local-authenticated-attacker-decrypts-stored-sql-credentials-in-ivanti-workspace-control\/\"  data-wpil-monitor-id=\"60860\">attacker&#8217;s code is executed locally<\/a> on the user&#8217;s system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-861393165\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>Here is a conceptual example of how an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5353-local-authenticated-attacker-exploit-in-ivanti-workspace-control\/\"  data-wpil-monitor-id=\"60901\">attacker might exploit<\/a> this vulnerability. It involves crafting a malicious payload within a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47168-use-after-free-vulnerability-in-microsoft-office-word-allowing-unauthorized-code-execution\/\"  data-wpil-monitor-id=\"73060\">Microsoft Word<\/a> document.<\/p>\n<pre><code class=\"\" data-line=\"\">Open New Microsoft Word Document\nEmbed Payload {\nType: &#039;Expected Data Type&#039;,\nContent: &#039;Malicious Code&#039;\n}\nSave Document as &#039;Compromised.docx&#039;\nSend &#039;Compromised.docx&#039; to Target<\/code><\/pre>\n<p>In this pseudocode, the attacker creates a new Word document, embeds the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8714-critical-postgresql-vulnerability-allowing-malicious-code-injection-by-superusers\/\"  data-wpil-monitor-id=\"80685\">malicious code<\/a> within it (while presenting it as an expected data type), and then saves and sends the document to the target. When the target opens the document, the malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47163-unauthorized-code-execution-through-microsoft-sharepoint-deserialization-vulnerability\/\"  data-wpil-monitor-id=\"60956\">code is executed<\/a>.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The primary solution to this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47162-high-risk-buffer-overflow-vulnerability-in-microsoft-office\/\"  data-wpil-monitor-id=\"61749\">vulnerability is to apply the latest patches provided by Microsoft<\/a>. Regularly updating your <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4738-sql-injection-vulnerability-in-yirmibes-software-my-erp\/\"  data-wpil-monitor-id=\"62885\">software ensures that you are protected against known vulnerabilities<\/a>. For immediate, temporary mitigation, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"61750\">users can use a Web<\/a> Application Firewall (WAF) or an Intrusion Detection System (IDS). These <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40912-critical-vulnerability-in-cryptx-for-perl-allows-potential-system-compromise\/\"  data-wpil-monitor-id=\"60861\">systems can detect and block attempts to exploit this vulnerability<\/a>. However, these are not long-term solutions and should not replace the application of the vendor-provided patch.<br \/>\nRemember that in cybersecurity, staying updated is one of the most effective ways to protect your <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5868-critical-vulnerability-in-rt-thread-leading-to-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"63889\">systems and data<\/a> from threats.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In this article, we will delve into the details of a severe vulnerability that affects Microsoft Office, one of the world&#8217;s most widely used office productivity software suites. The vulnerability, identified as CVE-2025-47167, involves a type confusion flaw that could potentially allow an unauthorized attacker to execute code locally on a victim&#8217;s system. This [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[82],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-53936","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=53936"}],"version-history":[{"count":15,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53936\/revisions"}],"predecessor-version":[{"id":73112,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53936\/revisions\/73112"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=53936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=53936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=53936"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=53936"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=53936"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=53936"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=53936"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=53936"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=53936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}