{"id":53937,"date":"2025-06-21T18:10:05","date_gmt":"2025-06-21T18:10:05","guid":{"rendered":""},"modified":"2025-06-27T11:42:55","modified_gmt":"2025-06-27T17:42:55","slug":"cve-2025-47953-code-execution-vulnerability-in-microsoft-office","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-47953-code-execution-vulnerability-in-microsoft-office\/","title":{"rendered":"<strong>CVE-2025-47953: Code Execution Vulnerability in Microsoft Office<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is constantly evolving with new vulnerabilities being discovered and patched regularly. One such vulnerability, designated as CVE-2025-47953, affects the ubiquitous productivity software, Microsoft Office. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24770-critical-php-local-file-inclusion-vulnerability-in-bzotheme-craftxtore\/\"  data-wpil-monitor-id=\"60242\">vulnerability could allow an unauthorized attacker to execute code locally<\/a>, potentially compromising system security and leading to data leakage. Its severity and the widespread use of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47166-critical-deserialization-vulnerability-in-microsoft-office-sharepoint\/\"  data-wpil-monitor-id=\"61088\">Microsoft Office<\/a> make it a crucial area of focus for cybersecurity professionals and system administrators.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-47953<br \/>\nSeverity: High (8.4 CVSS score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: User<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40912-critical-vulnerability-in-cryptx-for-perl-allows-potential-system-compromise\/\"  data-wpil-monitor-id=\"60937\">System compromise and potential<\/a> data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2829089169\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/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=\"61106\">Microsoft Office<\/a> | All versions prior to the latest patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49709-critical-memory-corruption-vulnerability-in-firefox\/\"  data-wpil-monitor-id=\"60936\">vulnerability lies in the handling of memory<\/a> objects in Microsoft Office. It&#8217;s a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49794-critical-use-after-free-vulnerability-in-libxml2\/\"  data-wpil-monitor-id=\"61643\">use-after-free vulnerability<\/a>, where the software references memory after it has been freed or deleted. This can lead to undefined behavior such as crashing the program or, in this case, allows an attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47163-unauthorized-code-execution-through-microsoft-sharepoint-deserialization-vulnerability\/\"  data-wpil-monitor-id=\"60953\">execute arbitrary code<\/a>. An attacker can craft a malicious document which, when opened by a user, triggers the use-after-free condition and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5491-acer-controlcenter-remote-code-execution-vulnerability-potential-system-compromise\/\"  data-wpil-monitor-id=\"61220\">executes the attacker&#8217;s code<\/a> with the privileges of the current user.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3794156834\" 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>The following is a conceptual example of a malicious payload that could be embedded in a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-37743-critical-vulnerability-in-mmzdev-knowledgegpt-v-0-0-5-document-display-component\/\"  data-wpil-monitor-id=\"64273\">document to exploit this vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">Sub AutoOpen()\nDim buffer As String\nDim Ptr As Long\nDim shellcode As String\n&#039; Create a buffer and free it\nbuffer = Space$(1000)\nPtr = VarPtr(buffer)\nbuffer = &quot;&quot;\n&#039; Use the freed buffer\nshellcode = &quot;&lt;malicious shellcode&gt;&quot;\nCopyMemory ByVal Ptr, ByVal StrPtr(shellcode), Len(shellcode)\n&#039; Trigger execution of shellcode\nExecute Ptr\nEnd Sub<\/code><\/pre>\n<p>This pseudo-code is a simplified representation, and actual shellcode would be specifically crafted to exploit the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49796-exploiting-libxml2-memory-corruption-for-denial-of-service-and-data-leakage\/\"  data-wpil-monitor-id=\"61807\">vulnerability<\/a> and perform malicious actions such as installing malware or exfiltrating data.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39486-rankie-sql-injection-vulnerability-and-mitigation-measures\/\"  data-wpil-monitor-id=\"64274\">mitigate this vulnerability<\/a>, users are advised to apply the vendor patch provided by Microsoft. Until the patch can be applied, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These tools can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45984-critical-command-injection-vulnerability-detected-in-blink-routers\/\"  data-wpil-monitor-id=\"61644\">detect and block attempts to exploit the vulnerability<\/a>, reducing the risk of a successful attack.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is constantly evolving with new vulnerabilities being discovered and patched regularly. One such vulnerability, designated as CVE-2025-47953, affects the ubiquitous productivity software, Microsoft Office. This vulnerability could allow an unauthorized attacker to execute code locally, potentially compromising system security and leading to data leakage. Its severity and the widespread use of [&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-53937","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\/53937","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=53937"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53937\/revisions"}],"predecessor-version":[{"id":57785,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53937\/revisions\/57785"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=53937"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=53937"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=53937"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=53937"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=53937"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=53937"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=53937"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=53937"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=53937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}