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WannaCry targeted a Server Message Block ( SMB ) critical vulnerability that Microsoft patched with MS17 - 010 on March 14 , 2017 .
 ( patch vulnerability: patched,  Microsoft: releaser, critical vulnerability: vulnerability, Server Message Block ( SMB ): vulnerable system, MS17 - 010: patch number, March 14 , 2017: time) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( patch vulnerability: patched,  Microsoft: releaser, critical vulnerability: vulnerability, Server Message Block ( SMB ): vulnerable system, MS17 - 010: patch number, March 14 , 2017: time) 