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Those reasons are given as : Micro-architectural characteristics that preclude a practical implementation of features mitigating [ Spectre ] Variant 2 ( CVE -2017-5715 ) Limited Commercially Available System Software support Based on customer inputs , most of these products are implemented as “ closed systems ” and therefore are expected to have a lower likelihood of exposure to these vulnerabilities .
 [ Spectre ] Variant 2: vulnerability; CVE -2017-5715: common vulnerabilities and exposures
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: patch vulnerability 
  Option: issues addressed, patch, vulnerability, time, vulnerable system version, releaser, patch number, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 [ Spectre ] Variant 2: vulnerability; CVE -2017-5715: common vulnerabilities and exposures