CVE-2025-0291: 
vulnerability analysis and mitigation

Type Confusion vulnerability (CVE-2025-0291) was discovered in Google Chrome's V8 engine affecting versions prior to 131.0.6778.264. The vulnerability was reported by Popax21 on December 11, 2024, and was publicly disclosed on January 8, 2025. This high-severity flaw affects Google Chrome browsers across Windows, Mac, and Linux platforms (Chrome Release).

The vulnerability is classified as a Type Confusion issue (CWE-843) in Chrome's V8 JavaScript engine. It received 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 high severity across confidentiality, integrity, and availability impacts. CISA's Alternative Defense Posture (ADP) assessment assigned a slightly lower but still high CVSS score of 8.3 with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H (NVD).

The vulnerability allows a remote attacker to execute arbitrary code within the browser's sandbox environment through a specially crafted HTML page. Given the high CVSS scores for confidentiality, integrity, and availability, successful exploitation could lead to significant security compromises within the sandboxed environment (NVD).

Google has released version 131.0.6778.264/.265 for Windows, Mac, and Linux platforms to address this vulnerability. Users are advised to update their Chrome browsers to this version or later to mitigate the risk (Chrome Release).