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Cisco 's internal testing also turned up a critical issue in its IOS XE software , CVE -2018-0150 , due to an undocumented user account that has a default username and password .
 a critical issue: vulnerability; its IOS XE software: vulnerable system; CVE -2018-0150: common vulnerabilities and exposures; Cisco: vulnerable system owner
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: discover vulnerability 
  Option: vulnerable system owner, vulnerability, capabilities, time, vulnerable system version, discoverer, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 a critical issue: vulnerability; its IOS XE software: vulnerable system; CVE -2018-0150: common vulnerabilities and exposures; Cisco: vulnerable system owner