The following code is for security research and authorized testing only.
python
/*
* PoC Concept for CVE-2026-27923
* This code demonstrates the logic to trigger a Use-After-Free in DWM.
* Note: Actual exploit requires memory layout manipulation and specific API calls.
*/
#include <windows.h>
#include <stdio.h>
// Simulated trigger for the vulnerability
void TriggerUAF() {
HANDLE hDwmObject = NULL;
// Step 1: Create/Alloc vulnerable object in DWM
// In a real scenario, this would be a specific DWM API call
printf("[*] Allocating vulnerable object...\n");
// Step 2: Trigger the Free operation
// The object is freed but a reference is kept
printf("[*] Triggering object free...\n");
// Step 3: Use the freed object (UAF)
// Attacker controls this memory via Heap Spray before this access
printf("[*] Accessing freed memory to corrupt control flow...\n");
// If successful, code execution is achieved here
}
int main() {
printf("CVE-2026-27923 PoC Trigger\n");
TriggerUAF();
return 0;
}