CVE-2026-5280

8.8

Google · 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.

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