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What's Planned

FaultLine is a planned coverage-guided fuzzing harness aimed at embedded ARM firmware. It grows directly out of the bare-metal HSM I helped build for MITRE eCTF 2026 — that project made it obvious how hard it is to exercise cryptographic and message-parsing code on a Cortex-M target with confidence. FaultLine will combine an emulation backend with coverage feedback and structure-aware mutation to hunt for memory-safety and protocol-handling bugs in firmware that normally resists traditional fuzzing.

Planned Stack

  • - C / Rust
  • - Unicorn / QEMU
  • - AFL++ instrumentation
  • - ARM Cortex-M
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  • Status

    Upcoming

  • Target

    2026 – 2027

  • Role

    Solo Developer

Why I'm Building It

Embedded targets are where my hardware-security and exploit-development interests meet — a harness that finds real firmware bugs is the natural next step after building one.

The findings and methodology are intended to feed both CTF practice and graduate research in embedded security.

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