1422
" Cisco strongly recommends that customers upgrade to a fixed software release to remediate this issue , " Omar Santos of Cisco 's Product Security Incident Response Team warned on June 22 .
 patch vulnerability: upgrade
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: upgrade