CVE-2025-3066: 
vulnerability analysis and mitigation

A use-after-free vulnerability in Site Isolation component of Google Chrome versions prior to 135.0.7049.84 was identified (CVE-2025-3066). The vulnerability allows remote attackers to potentially exploit heap corruption through a specially crafted HTML page. This security issue has been classified as High severity by the Chromium security team (NVD, Chrome Release).

The vulnerability is classified as CWE-416 (Use After Free) with a CVSS v3.1 Base Score of 8.8 (High), indicating significant severity. The attack vector is network-based (AV:N) with low attack complexity (AC:L), requiring no privileges (PR:N) but user interaction (UI:R). The scope is unchanged (S:U) with high impact on confidentiality, integrity, and availability (C:H/I:H/A:H) (NVD).

If successfully exploited, this vulnerability could allow an attacker to potentially corrupt heap memory through a crafted HTML page, which could lead to arbitrary code execution within the context of the browser (NVD).

Users are strongly advised to update to Chrome version 135.0.7049.84 or later, which contains the fix for this vulnerability. The update is being rolled out for Windows, Mac, and Linux platforms (Chrome Release).