{"id":81793,"date":"2025-10-05T12:31:13","date_gmt":"2025-10-05T12:31:13","guid":{"rendered":""},"modified":"2025-10-28T12:32:38","modified_gmt":"2025-10-28T18:32:38","slug":"cve-2025-53761-use-after-free-vulnerability-in-microsoft-office-powerpoint","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53761-use-after-free-vulnerability-in-microsoft-office-powerpoint\/","title":{"rendered":"<strong>CVE-2025-53761: Use-after-free Vulnerability in Microsoft Office PowerPoint<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is constantly evolving, and Microsoft Office PowerPoint has recently fallen victim to a significant vulnerability. Identified as CVE-2025-53761, this vulnerability has the potential to allow an unauthorized attacker to execute code locally, which could lead to serious system compromise or data leakage. This vulnerability affects users worldwide who use Microsoft Office PowerPoint, making it a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9364-critical-open-database-issue-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"89058\">critical issue<\/a> that needs immediate attention and mitigation.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-53761<br \/>\nSeverity: High (7.8 CVSS Score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9443-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1-potentially-leads-to-system-compromise\/\"  data-wpil-monitor-id=\"89038\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3170469060\" 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-2025-32705-out-of-bounds-read-vulnerability-in-microsoft-office-outlook\/\"  data-wpil-monitor-id=\"91766\">Microsoft Office<\/a> PowerPoint | All versions prior to patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-53761 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54897-deserialization-vulnerability-in-microsoft-office-sharepoint\/\"  data-wpil-monitor-id=\"89205\">vulnerability in Microsoft Office<\/a> PowerPoint is a use-after-free vulnerability. It occurs when a user opens a maliciously crafted PowerPoint document. The attacker, having crafted a PowerPoint document that triggers a use-after-free condition, leverages this state to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9712-critical-remote-code-execution-vulnerability-in-ivanti-endpoint-manager\/\"  data-wpil-monitor-id=\"89118\">execute arbitrary code<\/a> in the context of the current user. The use-after-free condition occurs when PowerPoint mishandles objects in memory, allowing an attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9872-remote-code-execution-vulnerability-in-ivanti-endpoint-manager-due-to-insufficient-filename-validation\/\"  data-wpil-monitor-id=\"89159\">execute arbitrary code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2343005066\" 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 below pseudocode provides a conceptual <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30330-heap-based-buffer-overflow-vulnerability-in-illustrator-versions-29-3-28-7-5-and-earlier\/\"  data-wpil-monitor-id=\"91699\">illustration of how an attacker might exploit the CVE-2025-53761 vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">def exploit_CVE_2025_53761():\n# Create a malicious PowerPoint document\nppt = create_malicious_ppt()\n# This document contains code that triggers a use-after-free condition\n# The code in the document is executed in the context of the current user\ncode = &#039;&#039;&#039;\nobject = create_object()\ndelete_object(object)\nuse_object(object)  # Use-after-free vulnerability triggered here\n&#039;&#039;&#039;\n# Embed the code in the PowerPoint document\nembed_code_in_ppt(ppt, code)\n# Send the malicious PowerPoint document to the target\nsend_ppt_to_target(ppt)<\/code><\/pre>\n<p>Please note that this pseudocode is conceptual and is provided to help understand how the vulnerability might be exploited. Actual exploitation would require specific knowledge of the PowerPoint file structure and the specific use-after-free condition.<\/p>\n<p><strong>Recommended Mitigation<\/strong><\/p>\n<p>Users are strongly encouraged to apply the vendor patch as soon as possible. In the meantime, as a temporary mitigation strategy, users can use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and prevent potential exploitation attempts. It&#8217;s also recommended to avoid opening PowerPoint documents from untrusted sources.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is constantly evolving, and Microsoft Office PowerPoint has recently fallen victim to a significant vulnerability. Identified as CVE-2025-53761, this vulnerability has the potential to allow an unauthorized attacker to execute code locally, which could lead to serious system compromise or data leakage. This vulnerability affects users worldwide who use Microsoft Office [&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-81793","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\/81793","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=81793"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81793\/revisions"}],"predecessor-version":[{"id":84939,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81793\/revisions\/84939"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=81793"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=81793"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=81793"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=81793"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=81793"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=81793"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=81793"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=81793"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=81793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}