2999
In December , it was discovered that a handful of the company ’s Nighthawk line of routers were vulnerable to a flaw that could have given an attacker root access on the device and allowed them to run remote code .
 ( discover vulnerability: was discovered,  it: vulnerability, December: 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:
 ( discover vulnerability: was discovered,  it: vulnerability, December: time) 