437
Despite the crashes , Microsoft warned users not to remove the update , which plugged four remote code execution flaws that it said were more likely be exploited .
 patch vulnerability: plugged
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 patch vulnerability: plugged