CVE-2026-32219 Microsoft Brokering File System权限提升漏洞

#include <stdio.h> #include <stdlib.h> /* * Conceptual Proof of Concept for CVE-2026-32219 * Demonstrates the mechanism of a Double Free vulnerability. * This is a simulation and not the actual exploit code. */ void vulnerable_io_handler(char* user_data) { // Allocate buffer for file operation char* buffer = (char*)malloc(1024); if (buffer) { // Simulate processing user data memcpy(buffer, user_data, 100); // First free: Explicit release in one path free(buffer); // ... logic path ... // Second free: Implicit release in cleanup path (The Bug) // This triggers the Double Free condition free(buffer); } } int main() { printf("[*] Attempting to trigger vulnerability in Brokering File System...\n"); // Attacker controls input to influence memory state vulnerable_io_handler("Abitrary_Payload_Data"); return 0; }