2941
He discovered the vulnerability almost a year ago , but revealed it only now because Netgear has been slow to push out fixed firmware for affected devices .
 ( discover vulnerability: discovered,  the vulnerability: vulnerability, a year ago: time, He: 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: discovered,  the vulnerability: vulnerability, a year ago: time, He: discoverer) 