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Microsoft this week released software updates to fix roughly 50 security problems with various versions of its Windows operating system and related software , including one flaw that is already being exploited and another for which exploit code is publicly available .
 patch vulnerability: released
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: released