2816
Researchers have confirmed the flaw affects fully - patched Windows 10 and Windows 8.1 client systems , as well as the server equivalents of these platforms , Windows Server 2016 and Windows Server 2012 R2 .
 ( discover vulnerability: have confirmed,  Researchers: discoverer) 
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: have confirmed,  Researchers: discoverer) 