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Researchers from Positive Technologies have unearthed a critical vulnerability ( CVE -2017-6968 ) in Checker ATM Security by Spanish corporate group GMV Innovating Solutions .
 Positive Technologies: discoverer; Researchers: discoverer; CVE -2017-6968: common vulnerabilities and exposures; critical vulnerability: vulnerability; Checker ATM Security: vulnerable system; Spanish corporate group GMV Innovating Solutions: 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:
 Positive Technologies: discoverer; Researchers: discoverer; CVE -2017-6968: common vulnerabilities and exposures; critical vulnerability: vulnerability; Checker ATM Security: vulnerable system; Spanish corporate group GMV Innovating Solutions: vulnerable system owner