Date Added: Mar 2012
In this paper, the authors propose a new metrics for predicting network security level. The proposed metrics are based on the existence of vulnerabilities in the network. The proposed metrics are Non Exploited Vulnerability Percentage (NEVP) metric, Non Vulnerable Host Percentage (NVHP) metric and Coefficient of Network Security Level (CNSL) metric. These metrics can be used to predict the security level of a networks. Formulation of the proposed metrics also explained and equipped with a clear definition. In the simulation, the authors provide a simulation results in the form of data table and two dimension graphs. These graphs are two dimension graphs consist of metrics variable and network size as x-axis and y-axis respectively. Analysis of simulation results and future works are also provided at the end part of this paper.