{"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":"CVE-2025-6554: High-Risk Type Confusion Vulnerability in Google Chrome\u2019s V8 Engine<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

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.
\nThe wide adoption of Google Chrome as a preferred browser across various platforms, including Windows, macOS, and Linux, presents a considerable attack surface for potential exploitation<\/a>. This coupled with the severity of the impact – potential system compromise or data<\/a> leakage, necessitates immediate attention to this vulnerability.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-6554
\nSeverity: High (CVSS Score: 8.1)
\nAttack Vector: Remote
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: System compromise<\/a>, potential data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Google Chrome<\/a> | Prior to 138.0.7204.96<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability resides in the V8 JavaScript<\/a> engine, a critical component of the Google Chrome browser. It is a 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.
\nIn the case of CVE-2025-6554, a remote attacker can craft a specific HTML page to exploit this vulnerability<\/a>. When a 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 potentially compromise the user’s system or lead<\/a> to data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

While the specific exploit code remains undisclosed to prevent misuse, the following pseudocode illustrates the nature of the exploitation:<\/p>\n

\/\/ 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: 'This is not a number, causing type confusion'\n};\n\/\/ Triggering the vulnerability\nvulnerableFunction(maliciousObj);<\/code><\/pre>\n
This example demonstrates the concept of a type confusion vulnerability<\/a>. The malicious object is passed into a function which expects an Array object, triggering the vulnerability and leading<\/a> to unexpected behavior.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate the risks associated with CVE-2025-6554, users are advised to apply the latest vendor-provided patches from Google, which 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 potential exploitation<\/a> attempts. Regularly updating and patching software remains the most effective method to prevent exploitation of such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
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 […]<\/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,"_monsterinsights_skip_tracking":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":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t