Résumé : In this demo we show how we can increase the vulnerability awareness of self-governed environments by feeding the autonomic system Cfengine with security advisories taken from OVAL repositories and automatically translated by Ovalyzer. Ovalyzer is an extensible plugin-based OVAL to Cfengine translator capable of translating OVAL documents to Cfengine policy rules that represent them. These policy rules can be later consumed by Cfengine agents in order to assess their own security exposure in an autonomous manner.