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The zero - day memory corruption flaw resides in the implementation of the SMB ( server message block ) network file sharing protocol that could allow a remote , unauthenticated attacker to crash systems with denial of service attack , which would then open them to more possible attacks .
 discover vulnerability: resides in
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:
 discover vulnerability: resides in