732
When informed of the vulnerability and provided with test exploits , GMV confirmed its existence and that it affects versions 4.x and 5.x of the software , and ultimately pushed out a patch , which users are urged to install as soon as possible .
 ( discover vulnerability: informed,  vulnerability: 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: informed,  vulnerability: vulnerability) 