{"id":56589,"date":"2025-07-02T04:59:05","date_gmt":"2025-07-02T04:59:05","guid":{"rendered":""},"modified":"2025-09-11T20:15:57","modified_gmt":"2025-09-12T02:15:57","slug":"cve-2025-24063-heap-based-buffer-overflow-vulnerability-in-windows-kernel","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-24063-heap-based-buffer-overflow-vulnerability-in-windows-kernel\/","title":{"rendered":"<strong>CVE-2025-24063: Heap-based Buffer Overflow Vulnerability in Windows Kernel<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has recently identified a critical vulnerability, CVE-2025-24063, residing in the Windows Kernel. This vulnerability is a heap-based buffer overflow that could potentially compromise system security and lead to data leakage. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43245-critical-downgrade-issue-affecting-multiple-macos-versions\/\"  data-wpil-monitor-id=\"81807\">issue affects<\/a> a broad range of entities, from individual users to large-scale organizations, as it pertains to Windows, one of the world&#8217;s most widely used operating systems.<br \/>\nThe gravity of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24761-severe-php-local-file-inclusion-vulnerability-in-snstheme-dsk\/\"  data-wpil-monitor-id=\"63165\">vulnerability is underscored by its high CVSS Severity<\/a> Score of 7.8, indicating its serious potential to disrupt system operations and compromise data security. Cybersecurity practitioners, IT administrators, and all <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29828-critical-memory-leak-vulnerability-in-windows-cryptographic-services\/\"  data-wpil-monitor-id=\"63036\">Windows users should take immediate action to mitigate this vulnerability<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-24063<br \/>\nSeverity: High (CVSS: 7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6370-critical-vulnerability-in-d-link-dir-619l-2-06b01-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"63638\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-4270397238\" 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>Microsoft <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8088-path-traversal-vulnerability-in-windows-version-of-winrar\/\"  data-wpil-monitor-id=\"78661\">Windows | All current versions<\/a><\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The heap-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6292-critical-vulnerability-in-d-link-dir-825-2-03-leads-to-stack-based-buffer-overflow\/\"  data-wpil-monitor-id=\"63006\">buffer overflow vulnerability<\/a> exists in the Windows Kernel, the fundamental part of the Windows operating system. An authorized attacker can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6328-critical-remote-stack-based-buffer-overflow-vulnerability-in-d-link-dir-815-1-01\/\"  data-wpil-monitor-id=\"63022\">vulnerability by overloading the buffer<\/a> with more data than it&#8217;s designed to handle. This overflow can lead to unpredictable system behavior, including data corruption, system crashes, and most concerning, the potential for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-47031-critical-privilege-escalation-vulnerability-in-ncr-terminal-handler\/\"  data-wpil-monitor-id=\"63637\">privilege escalation<\/a>.<br \/>\nIf an attacker manages to execute code with higher privileges, they can gain full control over the affected system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4981-critical-file-extraction-vulnerability-in-mattermost-leading-to-potential-remote-code-execution\/\"  data-wpil-monitor-id=\"63092\">leading to potential<\/a> data theft, system compromise, or further network infiltration.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2003997300\" 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 this vulnerability might be exploited. This pseudocode simulates an attempt to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6291-d-link-dir-825-critical-stack-based-buffer-overflow-vulnerability\/\"  data-wpil-monitor-id=\"63014\">overflow the heap buffer<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;windows.h&gt;\nvoid exploit() {\nchar *heap_buffer = new char[100]; \/\/ create a heap buffer of 100 bytes\nmemset(heap_buffer, &#039;A&#039;, 200);    \/\/ overflow the buffer with 200 bytes\n}\nint main() {\nexploit(); \/\/ call the exploit function\n}<\/code><\/pre>\n<p>This code would cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6302-critical-remote-stack-based-buffer-overflow-vulnerability-in-totolink-ex1200t\/\"  data-wpil-monitor-id=\"63020\">buffer overflow<\/a> by attempting to write 200 bytes of data into a buffer that&#8217;s only designed to hold 100 bytes. If this code were executed with low-level privileges but within a process with high-level privileges, an attacker could potentially gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49651-critical-unauthorized-access-vulnerability-in-backendai\/\"  data-wpil-monitor-id=\"63032\">unauthorized access<\/a> to elevated privileges.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has recently identified a critical vulnerability, CVE-2025-24063, residing in the Windows Kernel. This vulnerability is a heap-based buffer overflow that could potentially compromise system security and lead to data leakage. This issue affects a broad range of entities, from individual users to large-scale organizations, as it pertains [&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":[88,82],"product":[95],"attack_vector":[86,76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-56589","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-linux","vendor-microsoft","product-linux-kernel","attack_vector-buffer-overflow","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56589","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=56589"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56589\/revisions"}],"predecessor-version":[{"id":74268,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/56589\/revisions\/74268"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=56589"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=56589"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=56589"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=56589"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=56589"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=56589"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=56589"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=56589"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=56589"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}