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Another vulnerability patched on Tuesday — CVE -2018-8423 — was publicly disclosed last month along with sample exploit code .
 last month: time; CVE -2018-8423: common vulnerabilities and exposures; exploit code: vulnerability
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:
 last month: time; CVE -2018-8423: common vulnerabilities and exposures; exploit code: vulnerability