{"id":57871,"date":"2025-07-06T18:42:32","date_gmt":"2025-07-06T18:42:32","guid":{"rendered":""},"modified":"2025-10-02T00:14:39","modified_gmt":"2025-10-02T06:14:39","slug":"cve-2025-6554-high-risk-type-confusion-vulnerability-in-google-chrome-s-v8-engine","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6554-high-risk-type-confusion-vulnerability-in-google-chrome-s-v8-engine\/","title":{"rendered":"<strong>CVE-2025-6554: High-Risk Type Confusion Vulnerability in Google Chrome\u2019s V8 Engine<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity community has recently identified a high-risk vulnerability in Google Chrome affecting the V8 JavaScript engine, specifically in versions prior to 138.0.7204.96. The vulnerability is designated as CVE-2025-6554 and is of significant concern due to the potential for remote attackers to exploit it through a carefully crafted HTML page, enabling unauthorized arbitrary read\/write operations.<br \/>\nThe wide adoption of Google Chrome as a preferred browser across various platforms, including Windows, macOS, and Linux, presents a considerable <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42959-unauthenticated-replay-attack-exploiting-hmac-reuse\/\"  data-wpil-monitor-id=\"72301\">attack surface for potential exploitation<\/a>. This coupled with the severity of the impact &#8211; <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6435-firefox-vulnerability-leading-to-potential-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"64813\">potential system compromise or data<\/a> leakage, necessitates immediate attention to this vulnerability.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-6554<br \/>\nSeverity: High (CVSS Score: 8.1)<br \/>\nAttack Vector: Remote<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43933-high-risk-vulnerability-leading-to-potential-system-compromise-via-password-reset-feature\/\"  data-wpil-monitor-id=\"72302\">System compromise<\/a>, potential data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1931511245\" 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-2025-8011-high-severity-heap-corruption-vulnerability-in-google-chrome-v8\/\"  data-wpil-monitor-id=\"75613\">Google Chrome<\/a> | Prior to 138.0.7204.96<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8029-critical-javascript-execution-vulnerability-in-thunderbird\/\"  data-wpil-monitor-id=\"67455\">vulnerability resides in the V8 JavaScript<\/a> engine, a critical component of the Google Chrome browser. It is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48815-windows-ssdp-service-type-confusion-vulnerability\/\"  data-wpil-monitor-id=\"78150\">type confusion<\/a> vulnerability, a class of issue where a piece of code does not verify the type of object that is passed to it, and it uses the object without type-checking.<br \/>\nIn the case of CVE-2025-6554, a remote attacker can craft a specific <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28243-html-injection-vulnerability-in-alteryx-server\/\"  data-wpil-monitor-id=\"72300\">HTML page to exploit this vulnerability<\/a>. When a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4334-critical-privilege-escalation-vulnerability-in-simple-user-registration-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"64945\">user visits this page using a vulnerable<\/a> version of Chrome, the malicious code embedded in the HTML could trigger the type confusion in V8, leading to arbitrary read\/write operations. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6032-unverified-tls-certificate-in-podman-machine-init-command-leads-to-potential-man-in-the-middle-attack\/\"  data-wpil-monitor-id=\"64645\">potentially compromise the user&#8217;s system or lead<\/a> to data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1117052089\" 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>While the specific exploit code remains undisclosed to prevent misuse, the following pseudocode illustrates the nature of the exploitation:<\/p>\n<pre><code class=\"\" data-line=\"\">\/\/ Vulnerable function in V8 engine\nfunction vulnerableFunction(obj) {\n\/\/ Assuming obj is always of type Array\nreturn obj.length;\n}\n\/\/ Malicious code\nlet maliciousObj = {\nlength: &#039;This is not a number, causing type confusion&#039;\n};\n\/\/ Triggering the vulnerability\nvulnerableFunction(maliciousObj);<\/code><\/pre>\n<p>This example demonstrates the concept of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53145-type-confusion-vulnerability-in-windows-message-queuing-allowing-remote-code-execution\/\"  data-wpil-monitor-id=\"78189\">type confusion vulnerability<\/a>. The malicious object is passed into a function which expects an Array object, triggering the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52717-sql-injection-vulnerability-in-lifterlms-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"65422\">vulnerability and leading<\/a> to unexpected behavior.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate the risks associated with CVE-2025-6554, users are advised to apply the latest vendor-provided patches from Google, which <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-58280-object-heap-address-exposure-vulnerability-in-ark-ets\/\"  data-wpil-monitor-id=\"87283\">address this vulnerability<\/a>. If unable to immediately apply the patch, it is recommended to utilize Web Application Firewalls (WAFs) or Intrusion Detection Systems (IDS) as a temporary measure to detect and prevent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80060\">potential exploitation<\/a> attempts. Regularly updating and patching software remains the most effective <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21120-trusting-http-permission-methods-on-the-server-side-vulnerability-in-dell-avamar\/\"  data-wpil-monitor-id=\"81501\">method to prevent exploitation of such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity community has recently identified a high-risk vulnerability in Google Chrome affecting the V8 JavaScript engine, specifically in versions prior to 138.0.7204.96. The vulnerability is designated as CVE-2025-6554 and is of significant concern due to the potential for remote attackers to exploit it through a carefully crafted HTML page, enabling unauthorized arbitrary read\/write [&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":[77,91,88,82],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-57871","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apple","vendor-google","vendor-linux","vendor-microsoft"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57871","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=57871"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57871\/revisions"}],"predecessor-version":[{"id":80125,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/57871\/revisions\/80125"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=57871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=57871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=57871"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=57871"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=57871"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=57871"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=57871"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=57871"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=57871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}