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Application & OT Security · Advanced

Fuzzing Corpus

The set of seed inputs a fuzzer starts from and grows as it finds inputs that reach new behavior.

Definition

A good corpus contains small, diverse, valid samples. Corpora are minimized to remove redundancy and saved so regression fuzzing can rerun them in CI. Crashing inputs are kept as regression tests.

Example

Seeding a JSON parser fuzzer with 200 sample API payloads.

Exam tip

Quality seeds dramatically improve fuzzing results.

Related terms