872
This happened earlier this year , prompting a warning from Adobe in May after it was informed by researchers at ESET and Microsoft that they 'd discovered a malicious PDF using a zero - day remote code execution flaw in Reader with a sandbox - busting Windows privilege escalation flaw .
 a zero - day remote code execution flaw: vulnerability; Reader: vulnerable system; they: discoverer; a sandbox - busting Windows privilege escalation flaw: 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:
 a zero - day remote code execution flaw: vulnerability; Reader: vulnerable system; they: discoverer; a sandbox - busting Windows privilege escalation flaw: vulnerability