1. A device comprising: a communication interface configured to: receive one or more business service models from a configuration management database, wherein the one or more business service models each comprises a set of configuration items, and wherein the one or more business service models each indicate a type of configuration item and a connectivity of the configuration item; a computer configured to: send the set of configuration items to a vulnerability assessment tool; receive, from the vulnerability assessment tool, one or more vulnerability assessment scores for each configuration item within the set of configuration items; determine an overall business service vulnerability score for each of one or more business services based on the one or more business service models and the vulnerability assessment scores received from the vulnerability assessment tool; and output electronically the overall business service vulnerability score.