{"id":36910,"date":"2025-05-10T16:04:42","date_gmt":"2025-05-10T16:04:42","guid":{"rendered":""},"modified":"2025-06-10T23:19:40","modified_gmt":"2025-06-11T05:19:40","slug":"cve-2025-4096-remote-heap-buffer-overflow-vulnerability-in-google-chrome-html-processing","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-4096-remote-heap-buffer-overflow-vulnerability-in-google-chrome-html-processing\/","title":{"rendered":"<strong>CVE-2025-4096: Remote Heap Buffer Overflow Vulnerability in Google Chrome HTML Processing<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape has once again been shaken by the discovery of a new critical vulnerability, tagged as CVE-2025-4096. This flaw is found in the HTML processing component of Google Chrome versions earlier than 136.0.7103.59. The vulnerability, a classic case of heap <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-35955-heap-based-buffer-overflow-vulnerabilities-in-gtkwave\/\"  data-wpil-monitor-id=\"41598\">buffer overflow<\/a>, could potentially be exploited by a remote attacker to cause heap corruption via a specially crafted HTML page. This opens up the possibility for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4372-webaudio-heap-corruption-in-google-chrome-a-potential-gateway-to-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"43764\">system compromise and data<\/a> leakage, hence its high severity rating. Given the widespread use of Google Chrome, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44192-high-severity-sql-injection-vulnerability-in-simple-barangay-management-system-v1-0\/\"  data-wpil-monitor-id=\"42131\">vulnerability can affect a vast number of systems<\/a> globally, making it a high-priority concern for IT professionals, developers, and end-users alike.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-4096<br \/>\nSeverity: High (8.8 CVSS Score)<br \/>\nAttack Vector: Network (via crafted HTML page)<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required (User must visit the malicious webpage)<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32974-critical-vulnerability-in-xwiki-s-rights-analysis-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"42284\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3771253704\" 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-2025-4050-heap-corruption-in-google-chrome-devtools-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"43054\">Google Chrome<\/a> | Prior to 136.0.7103.59<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by a remote attacker creating a malicious HTML page that utilizes specific code to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-35956-heap-based-buffer-overflow-vulnerability-in-gtkwave\/\"  data-wpil-monitor-id=\"41599\">overflow the heap buffer<\/a> in Google Chrome. With a carefully crafted payload, the attacker can cause heap corruption, which could lead to arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32444-remote-code-execution-vulnerability-in-vllm-integration-with-mooncake\/\"  data-wpil-monitor-id=\"41862\">code execution<\/a>. This means the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47663-unauthenticated-remote-attacker-gaining-full-access-due-to-improper-json-web-tokens-implementation\/\"  data-wpil-monitor-id=\"41606\">attacker could potentially gain unauthorized access<\/a> to the system or leak sensitive data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1736298633\" 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 basic conceptual example of a malicious HTML payload:<\/p>\n<pre><code class=\"\" data-line=\"\">&lt;!DOCTYPE html&gt;\n&lt;html&gt;\n&lt;body&gt;\n&lt;script&gt;\nvar overflow = new Array(4294967296);\nfor (var i = 0; i &lt; overflow.length; i++) {\noverflow[i] = &#039;A&#039;;\n}\ndocument.write(overflow);\n&lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre>\n<p>In this example, the script creates an array (`overflow`) with a size that exceeds the limit of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44905-heap-buffer-overflow-vulnerability-in-hdf5-v1-14-6\/\"  data-wpil-monitor-id=\"57259\">heap buffer<\/a>. It then fills this array with a simple &#8216;A&#8217; character, causing the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-35958-heap-based-buffer-overflow-vulnerability-in-gtkwave\/\"  data-wpil-monitor-id=\"41600\">buffer to overflow<\/a> and the heap to corrupt.<br \/>\nPlease note that this is a conceptual example, and the actual <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-35995-gtkwave-array-index-validation-vulnerability-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"42027\">code to exploit the vulnerability<\/a> would require more complexity. However, this basic example illustrates how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47154-exploitation-of-use-after-free-vulnerability-in-libjs-in-ladybird\/\"  data-wpil-monitor-id=\"42367\">vulnerability could potentially be exploited<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The recommended mitigation for this vulnerability is to apply the vendor patch. Google has released a security update (version 136.0.7103.59) that <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4335-privilege-escalation-vulnerability-in-woocommerce-multiple-addresses-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"43731\">addresses this vulnerability<\/a>. Users and administrators are strongly advised to apply this update as soon as possible. As a temporary mitigation, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-35989-integer-overflow-vulnerability-in-gtkwave-s-lxt2-zlib-block-allocation\/\"  data-wpil-monitor-id=\"41937\">block attempts to exploit this vulnerability<\/a>. However, these measures are not a long-term solution and can&#8217;t replace the need for the official patch.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape has once again been shaken by the discovery of a new critical vulnerability, tagged as CVE-2025-4096. This flaw is found in the HTML processing component of Google Chrome versions earlier than 136.0.7103.59. The vulnerability, a classic case of heap buffer overflow, could potentially be exploited by a remote attacker to cause [&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":[91],"product":[],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-36910","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-google","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/36910","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=36910"}],"version-history":[{"count":14,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/36910\/revisions"}],"predecessor-version":[{"id":51092,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/36910\/revisions\/51092"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=36910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=36910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=36910"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=36910"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=36910"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=36910"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=36910"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=36910"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=36910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}