Find vulnerabilities before anyone else does. Zero days aren’t magic—they’re missed
opportunities. From Day Zero to Zero Day teaches you how to find them before anyone else does.
In this hands-on guide award-winning white-hat hacker Eugene “Spaceraccoon” Lim breaks down
the real-world process of vulnerability discovery. You’ll retrace the steps behind past CVEs
analyze open source and embedded targets and build a repeatable workflow for uncovering
critical flaws in code. Whether you’re new to vulnerability research or sharpening an existing
skill set this book will show you how to think—and work—like a bug hunter. You’ll learn how
to: Identify promising targets across codebases protocols and file formats. Trace code
paths with taint analysis and map attack surfaces with precision. Reverse engineer binaries
using Ghidra Frida and angr. Apply coverage-guided fuzzing symbolic execution and variant
analysis. Build and validate proof-of-concept exploits to demonstrate real-world impact.
More than a toolkit this is a window into how top vulnerability researchers approach the work.
You’ll gain not just techniques but also the mindset to go deeper ask better questions and
find what others miss. If you’re ready to stop reading write-ups and start writing them From
Day Zero to Zero Day is your guide.
