{"id":41979,"date":"2025-05-21T19:00:04","date_gmt":"2025-05-21T19:00:04","guid":{"rendered":""},"modified":"2025-08-29T01:22:02","modified_gmt":"2025-08-29T07:22:02","slug":"cve-2025-29964-heap-based-buffer-overflow-vulnerability-in-windows-media","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-29964-heap-based-buffer-overflow-vulnerability-in-windows-media\/","title":{"rendered":"<strong>CVE-2025-29964: Heap-based Buffer Overflow Vulnerability in Windows Media<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the ever-evolving landscape of cybersecurity, a new vulnerability has emerged, labeled as CVE-2025-29964. The vulnerability presents itself in the form of a heap-based buffer overflow, specifically within Windows Media. This poses a significant risk to any <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-20698-windows-kernel-elevation-of-privilege-vulnerability-a-threat-to-system-security\/\"  data-wpil-monitor-id=\"47198\">system utilizing Windows<\/a> Media, given the popularity and ubiquity of the software. The vulnerability allows unauthorized attackers to execute arbitrary code over a network, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-34333-critical-vulnerability-in-ami-s-spx-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"47611\">potentially leading to system<\/a> compromise or data leakage.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30387-severe-path-traversal-vulnerability-in-azure-allowing-privilege-escalation\/\"  data-wpil-monitor-id=\"48733\">severity of this vulnerability<\/a> is high, with a CVSS Severity Score of 8.8. It is imperative for organizations and individual <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40566-severe-user-session-vulnerability-in-simatic-pcs-neo-products\/\"  data-wpil-monitor-id=\"48854\">users alike to understand the nature of this vulnerability<\/a>, its potential impact, and the necessary steps to mitigate its risks.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-29964<br \/>\nSeverity: High (8.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27891-samsung-mobile-and-wearable-processors-vulnerability-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"49339\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1710702515\" 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>Windows Media | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48865-manipulation-of-x-forwarded-headers-in-fabio-prior-to-version-1-6-6\/\"  data-wpil-monitor-id=\"58317\">versions prior<\/a> to the vendor patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by taking advantage of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4448-critical-buffer-overflow-vulnerability-in-d-link-dir-619l\/\"  data-wpil-monitor-id=\"47052\">buffer overflow vulnerability<\/a> in Windows Media. In a nutshell, a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4446-critical-buffer-overflow-vulnerability-in-h3c-gr-5400ax\/\"  data-wpil-monitor-id=\"47058\">buffer overflow<\/a> occurs when more data is written to a buffer, or temporary data storage area, than it can handle. This overflow of data can overwrite adjacent memory spaces, causing unpredictable system behaviour, including crashes and the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-21325-microsoft-printer-metadata-troubleshooter-tool-remote-code-execution-vulnerability\/\"  data-wpil-monitor-id=\"47730\">execution of malicious code<\/a>.<br \/>\nIn the case of CVE-2025-29964, the vulnerability allows a malicious user to send specially crafted data that <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3714-stack-based-buffer-overflow-vulnerability-in-lcd-kvm-over-ip-switch-cl5708im\/\"  data-wpil-monitor-id=\"47191\">overflows<\/a> the buffer, resulting in the execution of arbitrary code. This can be done remotely over a network, without any need for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48340-critical-csrf-vulnerability-in-danny-vink-user-profile-meta-manager-allows-privilege-escalation\/\"  data-wpil-monitor-id=\"52903\">user interaction or special privileges<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4012581772\" 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 <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23394-critical-unix-symbolic-link-following-vulnerability-in-opensuse-tumbleweed-cyrus-imapd\/\"  data-wpil-monitor-id=\"54440\">following is a conceptual example of how this vulnerability<\/a> might be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/windowsmedia\/exploit HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;buffer_overflow_data&quot;: &quot;AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...&quot; }<\/code><\/pre>\n<p>In this example, an attacker sends an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4827-critical-buffer-overflow-vulnerability-in-totolink-http-post-request-handler\/\"  data-wpil-monitor-id=\"50941\">HTTP POST request<\/a> filled with excessive data (represented by &#8216;A&#8217;s) to a specific endpoint on the target system. This data <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4440-critical-buffer-overflow-vulnerability-in-h3c-gr-1800ax\/\"  data-wpil-monitor-id=\"47063\">overflows the buffer<\/a> of the Windows Media software, potentially leading to system crashes or allowing the attacker to execute arbitrary code.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The primary mitigation for this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49002-critical-vulnerability-in-dataease-bypassing-patch-for-cve-2025-32966\/\"  data-wpil-monitor-id=\"72033\">vulnerability is to apply the vendor-supplied patch<\/a>. All users of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49691-heap-based-buffer-overflow-in-windows-media-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"72032\">Windows Media<\/a> should ensure they are running the most current version of the software, with all available patches applied.<br \/>\nIn the absence of a patch, or until one can be applied, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation. These <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24223-memory-corruption-vulnerability-in-various-operating-systems-and-safari-browser\/\"  data-wpil-monitor-id=\"47381\">systems can detect and block attempts to exploit this vulnerability<\/a>. However, these are not long-term solutions and should not replace applying the vendor-supplied patch.<br \/>\nMaintaining a proactive stance on <a href=\"https:\/\/www.ameeba.com\/blog\/infopercept-s-new-fintech-focused-cybersecurity-solution-a-game-changer-in-the-digital-landscape\/\"  data-wpil-monitor-id=\"47947\">cybersecurity is vital in this digital<\/a> age. By staying updated on recent vulnerabilities and patches, you can better protect your <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-22190-critical-gitpython-vulnerability-exposes-windows-systems-to-potential-compromise\/\"  data-wpil-monitor-id=\"51357\">systems and data from potential<\/a> threats.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the ever-evolving landscape of cybersecurity, a new vulnerability has emerged, labeled as CVE-2025-29964. The vulnerability presents itself in the form of a heap-based buffer overflow, specifically within Windows Media. This poses a significant risk to any system utilizing Windows Media, given the popularity and ubiquity of the software. The vulnerability allows unauthorized attackers [&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":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-41979","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/41979","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=41979"}],"version-history":[{"count":18,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/41979\/revisions"}],"predecessor-version":[{"id":64854,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/41979\/revisions\/64854"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=41979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=41979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=41979"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=41979"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=41979"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=41979"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=41979"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=41979"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=41979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}