The following code is for security research and authorized testing only.
python
#include <windows.h>
#include <stdio.h>
// Proof of Concept for CVE-2026-33101
// This is a simulation of triggering a Use-After-Free in Print Spooler.
// **DO NOT RUN IN PRODUCTION**
void TriggerUAF() {
HANDLE hPrinter;
PRINTER_DEFAULTSA defaults;
ZeroMemory(&defaults, sizeof(defaults));
defaults.DesiredAccess = SERVER_ALL_ACCESS;
// Simulate opening a printer to interact with the spooler
if (!OpenPrinterA("Microsoft Print to PDF", &hPrinter, &defaults)) {
printf("Failed to open printer. Error: %d\n", GetLastError());
return;
}
printf("[+] Printer handle opened: 0x%p\n", hPrinter);
// In a real exploit, specific IOCTLs or API calls would be made
// to corrupt the heap or trigger the UAF condition.
// Example: ClosePrinter(hPrinter); // Free object
// Sleep(100);
// UseAfterFreeTrigger(hPrinter); // Access freed object
ClosePrinter(hPrinter);
printf("[+] PoC execution completed.\n");
}
int main() {
printf("CVE-2026-33101 PoC Trigger\n");
TriggerUAF();
return 0;
}