Chrome's 'Use-After-Free' Bug: Remote Code Execution Risk

Chrome's 'Use-After-Free' Bug: Remote Code Execution Risk

A high-severity ‘use-after-free’ vulnerability, identified as CVE-2026-6302, has been flagged in Google Chrome. According to the National Vulnerability Database, this flaw impacts versions prior to 147.0.7727.101, specifically within the browser’s video component. This isn’t just a minor bug; it’s a critical security bypass that could allow a remote attacker to execute arbitrary code.

The attack vector is insidious: all it takes is a specially crafted HTML page. Once rendered, the vulnerability could be exploited to run code within the sandbox, potentially leading to a full system compromise. The National Vulnerability Database has assigned this a CVSS score of 8.8 (HIGH), underscoring the severity and the urgent need for patching. This type of vulnerability, often categorized as CWE-416, is a common pitfall in memory management and a favorite among exploit developers for its reliability and impact.

Related ATT&CK Techniques

🛡️ Detection Rules

4 rules · 6 SIEM formats

4 auto-generated detection rules for this incident, mapped to MITRE ATT&CK. Available in Sigma, Splunk SPL, Sentinel KQL, Elastic Lucene, QRadar AQL, and Wazuh.

high T1190 Initial Access

Web Application Exploitation Attempt — CVE-2026-6302

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Indicators of Compromise

IDTypeIndicator
CVE-2026-6302 Use After Free Google Chrome < 147.0.7727.101
CVE-2026-6302 RCE Video component in Google Chrome
CVE-2026-6302 Code Injection crafted HTML page

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