US Patent 7926114 Testing software applications with schema-based fuzzing

Systems and methods to test software applications with schema-based fuzzing are described. In one aspect, the systems and methods automatically generate valid input data for a software application according to a fuzzing data schema. The fuzzing data schema describes characteristics of data format that would be proper or well formed for input into the software application. The systems and methods mutate to the valid input data with one or more fuzzing algorithms to generate corrupted versions, or malformed data. The malformed data is for fuzz testing the software application to identify any security vulnerabilities.