CVE-2026-32156 Windows UPnP设备主机释放后使用漏洞

// Conceptual PoC for CVE-2026-32156 (Windows UPnP Device Host UAF) // This demonstrates the logic of Use-After-Free #include <windows.h> #include <stdio.h> void SimulateVulnerability() { void* pVulnerableObject = NULL; printf("[1] Allocating object in UPnP Device Host context...\n"); // Simulation: The service allocates memory pVulnerableObject = HeapAlloc(GetProcessHeap(), 0, 1024); printf("[2] Freeing the object (Vulnerability Trigger)...\n"); // Simulation: The service frees the memory but keeps the pointer HeapFree(GetProcessHeap(), 0, pVulnerableObject); // Pointer pVulnerableObject is now dangling! printf("[3] Attacker reallocates memory (Heap Grooming)...\n"); // Simulation: Attacker takes over the freed memory block void* pAttackerControlled = HeapAlloc(GetProcessHeap(), 0, 1024); memset(pAttackerControlled, 0x90, 1024); // Fill with NOP/Shellcode // Assuming pVulnerableObject points to pAttackerControlled now printf("[4] Service attempts to use the freed pointer...\n"); // Simulation: The service tries to use the dangling pointer memcpy((char*)pVulnerableObject + 512, "CRASH", 5); printf("[+] Exploit triggered.\n"); } int main() { SimulateVulnerability(); return 0; }