CVE-2026-5280
8.8Google · Chrome
A use after free vulnerability in the WebCodecs component of Google Chrome allows remote attackers to execute arbitrary code via a crafted HTML page.
Executive summary
A high-severity use after free vulnerability in Google Chrome allows remote attackers to achieve arbitrary code execution, posing a significant risk to user systems.
Vulnerability
This flaw is a use after free vulnerability (CWE-416) within the WebCodecs component. It allows an unauthenticated remote attacker to trigger memory corruption and execute arbitrary code within the browser sandbox by enticing a user to visit a malicious HTML page.
Business impact
Successful exploitation of this vulnerability could lead to a complete compromise of the browser environment, potentially allowing attackers to bypass security controls or deploy malware. Given the high CVSS score of 8.8, this flaw represents a significant risk to organizational assets and data integrity if attackers successfully target end-user workstations.
Remediation
Immediate Action: Update Google Chrome to the latest stable release provided by the vendor to ensure the WebCodecs component is patched.
Proactive Monitoring: Monitor endpoint security logs for unusual browser activity or unexpected process terminations that may indicate exploitation attempts.
Compensating Controls: Ensure that browser-based security features are enabled and utilize endpoint detection and response tools to identify and block malicious code execution patterns.
Exploitation status
Public Exploit Available: Unknown
Analyst recommendation
Given the potential for remote code execution, this vulnerability should be treated as a priority for all systems running Google Chrome. Administrators must ensure that the latest security updates are applied across the environment immediately to mitigate the risk of exploitation.