The openscap project is a set of open source libraries that support the SCAP (Security Content Automation Protocol) set of standards from NIST. It supports CPE, CCE, CVE, and CVSS.
Changes: XSL transformations for generating report and guidance from XCCDF. SQL and xinetd OVAL probes. Updated Python bindings. Fixes for building on Debian-based distributions. Memory usage optimizations and many bugfixes.