the central meeting place for the OVAL Community to discuss, analyze, store, and disseminate OVAL definitions.

OVAL definitions are standardized, machine-readable tests written in the Open Vulnerability and Assessment Language (OVAL®) that check the machine state of computer systems for the presence of software vulnerabilities, configuration issues, programs, and patches.

OVAL definitions, which are free to use and implement in information security products and services, are written in Extensible Mark-up Language (XML) and are available for most major platforms.

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