CVE-2025-1920: 
vulnerability analysis and mitigation

A Type Confusion vulnerability in V8 engine was discovered in Google Chrome prior to version 134.0.6998.88. The vulnerability was reported by Excello s.r.o. on February 21, 2025, and was assigned CVE-2025-1920. This security flaw affects Chrome browsers across Windows, Mac, and Linux platforms (Chrome Release, NVD).

The vulnerability is classified as a Type Confusion issue in Chrome's V8 JavaScript engine that could potentially lead to heap corruption when exploited via a crafted HTML page. It has been assigned a CVSS v3.1 base score of 8.8 (High) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating its severe nature. The vulnerability is tracked under CWE-843 (Access of Resource Using Incompatible Type) (NVD).

The vulnerability carries a High security severity rating and could potentially allow remote attackers to exploit heap corruption through specially crafted HTML pages. Given the CVSS score of 8.8, successful exploitation could lead to high impacts on confidentiality, integrity, and availability of the affected system (Chrome Release).

Google has released version 134.0.6998.88/.89 for Windows and Mac, and 134.0.6998.88 for Linux to address this vulnerability. Users are strongly advised to update their Chrome browsers to these versions or later. The fix was released on March 10, 2025, and Google awarded a $7,000 bug bounty for the discovery (Chrome Release).