2893
While the Pentagon is said to be aware of the vulnerable servers , it has yet to implement any fixes -- more than eight months after the department was alerted .
 ( discover vulnerability: is said to be aware,  Pentagon: vulnerable system owner, the vulnerable servers: vulnerable system) 
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: is said to be aware,  Pentagon: vulnerable system owner, the vulnerable servers: vulnerable system) 