Tag Archives: ip helper

Unhelpful IP Helper: A Handle Leak Story

By | August 13, 2025

After my post about a CancelIoEx bug, I decided to cover another defect in Windows system components—this time in IP Helper (the part of the Windows API responsible for network statistics and connection tables). Among other things, this API lets you map packets intercepted at the network level to local processes. You’d think it’s a battle-tested mechanism running… Read More »