1135
With more than 12,000 clients across the world using the company 's services , it is hard to establish how many customers ' details were exposed in the ' information disclosure vulnerability ' found by security researcher Kristian Erik Hermansen .
 security researcher Kristian Erik Hermansen: discoverer; the ' information disclosure vulnerability ': 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:
 security researcher Kristian Erik Hermansen: discoverer; the ' information disclosure vulnerability ': vulnerability