2902
Until Microsoft patches the memory corruption flaw ( most probably in the upcoming Windows update or out - of - band patch ) , Windows users can temporarily fix the issue by blocking outbound SMB connections ( TCP ports 139 and 445 and UDP ports 137 and 138 ) from the local network to the WAN .
 ( patch vulnerability: patches,  Microsoft: releaser, the memory corruption flaw: 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:
 ( patch vulnerability: patches,  Microsoft: releaser, the memory corruption flaw: vulnerability) 