CVE-2026-34331 Windows Win32K权限提升漏洞

#include <windows.h> #include <stdio.h> #include <thread> // Primitive Proof of Concept structure for Race Condition // This code demonstrates the threading logic required to trigger a TOCTOU vulnerability. HANDLE hEvent1, hEvent2; void Thread1() { // Thread 1: Trigger object allocation in Kernel // Simulate calling a vulnerable Win32K function printf("[*] Thread 1: Triggering allocation...\n"); // VulnerableFunctionCall(...); SetEvent(hEvent1); Sleep(1); // Small delay to create window } void Thread2() { // Thread 2: Trigger object free/modification WaitForSingleObject(hEvent1, INFINITE); printf("[*] Thread 2: Triggering free...\n"); // FreeVulnerableObject(...); } int main() { printf("[+] CVE-2026-34331 PoC Trigger\n"); // Initialize synchronization objects hEvent1 = CreateEvent(NULL, FALSE, FALSE, NULL); hEvent2 = CreateEvent(NULL, FALSE, FALSE, NULL); // Create threads to race std::thread t1(Thread1); std::thread t2(Thread2); t1.join(); t2.join(); printf("[+] Exploit attempt finished.\n"); return 0; }