1011
As disclosed in their advisory , Microsoft acknowledged the exploitation of this vulnerability ( CVE -2018-8440 ) .
 this vulnerability: vulnerability; CVE -2018-8440: common vulnerabilities and exposures; Microsoft: 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:
 this vulnerability: vulnerability; CVE -2018-8440: common vulnerabilities and exposures; Microsoft: vulnerable system owner