This indicates an attack attempt to exploit a Security Bypass vulnerability in Google Chrome.
The vulnerability is due to an error when the vulnerable software attempts to access an malicious URL. An attacker can exploit this by tricking an unsuspecting user into visiting a malicious webpage and execute arbitrary script within the context of the application.
Google Chrome 44.0.2403.157 and prior
System Compromise: Remote attackers can execute arbitrary script code within the context of the target user's browser.
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