Chrome Zero-Day: Use-After-Free Flaw Exposes Users to RCE

Chrome Zero-Day: Use-After-Free Flaw Exposes Users to RCE

The National Vulnerability Database recently flagged CVE-2026-6316, a high-severity use-after-free vulnerability impacting Google Chrome. This nasty little bug, present in Forms prior to version 147.0.7727.101, allows a remote attacker to execute arbitrary code within the browser’s sandbox. According to the National Vulnerability Database, exploitation is triggered simply by luring a user to a specially crafted HTML page.

Rated with a CVSS score of 8.8 (HIGH), this vulnerability is a prime example of the critical risks associated with memory management flaws. Use-after-free bugs (CWE-416) are notoriously dangerous because they can lead to unpredictable program behavior, data corruption, and, as seen here, arbitrary code execution. While the National Vulnerability Database didn’t specify affected products beyond Chrome itself, the implication is clear: if you’re running an older build, you’re exposed to a significant threat from drive-by attacks.

Related ATT&CK Techniques

🛡️ Detection Rules

1 rules · 6 SIEM formats

1 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 vulnerability event-type

Exploitation Attempt — CVE-2026-6316

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Indicators of Compromise

IDTypeIndicator
CVE-2026-6316 Use After Free Google Chrome < 147.0.7727.101
CVE-2026-6316 RCE Forms component in Google Chrome
CVE-2026-6316 Code Injection crafted HTML page

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