Chrome Zero-Day: Use-After-Free in CSS Poses High Risk

The National Vulnerability Database (NVD) recently highlighted CVE-2026-6300, a critical use-after-free vulnerability in Google Chrome. This flaw, present in versions prior to 147.0.7727.101, could allow a remote attacker to execute arbitrary code within the browser’s sandbox. The severity is pegged at a concerning 8.8 (HIGH) on the CVSS 3.1 scale.

This isn’t just another bug; use-after-free vulnerabilities (CWE-416) are notorious for their exploitability. They occur when a program tries to use memory after it has been freed, often leading to corruption and, in this case, arbitrary code execution. For Chrome, a widely used browser, this means a crafted HTML page could be all it takes for an attacker to gain a foothold, bypassing the browser’s built-in sandbox protections. While the NVD didn’t specify affected products beyond Chrome itself, the implication is clear: anyone running an unpatched version is at risk.