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A flaw in unpatched versions of Window 10 could leave machines vulnerable to EternalBlue , the remote kernel exploit behind the recent WannaCry ransomware attack .
 ( discover vulnerability: vulnerable,  machines: vulnerable system, Window 10: vulnerable system, flaw: vulnerability, unpatched versions: vulnerable system version, the remote kernel exploit: vulnerability) 
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:
 ( discover vulnerability: vulnerable,  machines: vulnerable system, Window 10: vulnerable system, flaw: vulnerability, unpatched versions: vulnerable system version, the remote kernel exploit: vulnerability) 