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However , he also claims to have exploited an undisclosed remote command execution ( RCE ) vulnerability in the web management interface of Xerox printers .
 discover vulnerability: claims to have exploited
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 discover vulnerability: claims to have exploited