CVE-2026-17721
9.6Google · Chrome
A remote attacker can achieve a sandbox escape in Google Chrome by leveraging an out of bounds write vulnerability within the ANGLE graphics component via a specifically crafted HTML page.
Executive summary
A critical out of bounds write vulnerability in Google Chrome allows remote attackers to execute a sandbox escape, potentially leading to full system compromise.
Vulnerability
This vulnerability involves an out of bounds write (CWE-787) in the ANGLE graphics library. The flaw is exploitable by an unauthenticated remote attacker who lures a user to a crafted HTML page, triggering the memory corruption required to bypass the browser sandbox.
Business impact
Successful exploitation of this vulnerability enables a remote attacker to escape the browser sandbox, which is a primary security boundary for user workstations. Given the CVSS score of 9.6, this flaw poses a severe threat to enterprise environments, as it could facilitate arbitrary code execution on the underlying host system, leading to data theft, malware deployment, and total loss of system integrity.
Remediation
Immediate Action: Update all Google Chrome installations to version 151.0.7922.72 or later immediately.
Proactive Monitoring: Monitor endpoint security logs for anomalous browser process behavior, such as unexpected crashes or unauthorized file system access originating from the Chrome renderer process.
Compensating Controls: Ensure that the browser is running with the latest security baseline configurations, including restricted permissions for non-administrative users to limit the potential impact of a successful sandbox escape.
Exploitation status
Public Exploit Available: No (exploit_available unknown)
Analyst recommendation
Due to the critical nature of sandbox escape vulnerabilities in widely deployed browsers, organizations must prioritize the deployment of the provided update. Delaying the patch lifecycle for this CVE significantly increases the risk of workstation compromise via drive-by download attacks. Ensure that all instances of Chrome are updated to the secure version across the entire fleet to mitigate this critical exposure.