# DebugOff


## Posts

- [Nvidia Service Vulnerabilities (0day)](https://debugoff.com/nvidia-service-vulnerabilities-0day/): Nvidia was notified on May 30th, 2026 of several issues with the NVSmartMax service.
- [Patch Diffing Windows: MSU Internals and Helper Scripts](https://debugoff.com/patch-diffing-windows-msu-internals-and-helper-scripts/): Patch diffing Windows binaries is one of the most direct paths into vulnerability research, n-day exploit development, and Windows internals.
- [The Real LFH Activation Behavior (NT Heap)](https://debugoff.com/the-real-lfh-activation-behavior-nt-heap/): It has long been known that the LFH activates around the 17th allocation. However, those who have experimented with this might have seen some odd behaviors.
- [WinAFL EXE Fuzzing](https://debugoff.com/winafl-exe-fuzzing/): There are a handful of great guides on performing fuzzing using WinAFL (and various other fuzzers).
- [Extending PE Sections](https://debugoff.com/extending-pe-sections/): Warning: A basic understanding of the PE header is assumed.
- [Heap CTF: LevelOne](https://debugoff.com/heap-ctf-levelone/): This CTF mimics some of the real heap exploits I've seen and made. It aims to provide unique challenges while also not being overly contrived.

## Pages

- [Tutor Login](https://debugoff.com/tutor-login-2/)
- [Resources](https://debugoff.com/resources/): Here are some resources I've gathered over the years. Some of the links may or may not still be working. If not, throw try using archive.org.
- [Checkout](https://debugoff.com/checkout/)
- [Cart](https://debugoff.com/cart/)
- [Instructor Registration](https://debugoff.com/instructor-registration/)
- [Student Registration](https://debugoff.com/student-registration/)
- [Dashboard](https://debugoff.com/dashboard/)
- [About](https://debugoff.com/about/): Hello, I'm Z0F. Sometimes I go by 0xZ0F if the shorter name isn't available.
- [Blog](https://debugoff.com/blog/)
- [Home](https://debugoff.com/)
- [Privacy Policy](https://debugoff.com/privacy-policy/): Suggested text: Our website address is: http://debugoff.com.

## Optional

- [Agent (MCP protocol)](websites-agents.hostinger.com/debugoff.com/mcp)

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