From Day Zero to Zero Day: A Hands-On Guide to Vulnerability...

Description

From Day Zero to Zero Day: A Hands-On Guide to Vulnerability Research.

Learn to uncover security vulnerabilities before attackers do.

Zero-day vulnerabilities don’t appear by chance—they’re the result of hidden flaws that others failed to detect. From Day Zero to Zero Day provides a practical, hands-on roadmap for discovering those weaknesses, helping you develop the skills and mindset used by professional vulnerability researchers.

Written by award-winning white-hat hacker Eugene “Spaceraccoon” Lim, this guide takes you through the complete vulnerability research process using real-world examples and case studies inspired by previously disclosed CVEs. You’ll examine open-source software, embedded systems, and complex applications while building a structured methodology for identifying, analyzing, and validating security flaws.

Whether you’re taking your first steps into vulnerability research or looking to refine your existing expertise, this book teaches the investigative techniques, analytical thinking, and practical workflows needed to become a more effective bug hunter.

What You’ll Learn

• Identify high-value targets across source code, network protocols, applications, and file formats.
• Analyze attack surfaces and trace vulnerable code paths using taint analysis techniques.
• Reverse engineer executables and embedded software with tools such as Ghidra, Frida, and angr.
• Discover vulnerabilities using coverage-guided fuzzing, symbolic execution, and variant analysis.
• Develop and validate proof-of-concept exploits to demonstrate the real-world impact of identified flaws.

More than a collection of tools and techniques, From Day Zero to Zero Day offers an inside look at how experienced security researchers approach vulnerability discovery. You’ll learn how to think critically, ask the right questions, and systematically uncover weaknesses that others overlook.

If you’re ready to move beyond reading vulnerability reports and begin finding—and documenting—your own discoveries, this book provides the knowledge and practical foundation to get started.