Microsoft Brokering File System (具体受影响版本请参考微软安全公告)
PoC / Exploit Code
⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
#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;
}