Various implementations disclosed herein provide a method for detecting impact of the vulnerability by using a normalizer and correlator. In various implementations, the method includes: accessing a first set of data from a first data sources, calculating a risk level value for each of the first set of data based on a first set of rules, sorting the first set of data based on their risk level, accessing the sorted first set of data by a correlator, accessing, by the correlator, a second set of data from second data sources, correlating each of the sorted first set of data to at least a data of the second set of data based a second set of rules, and calculating a confidence score for each data of the sorted first set of data based on a third set of rules.