CVE-2026-34330 Windows Win32K权限提升漏洞

/* * PoC for CVE-2026-34330 (Conceptual) * Triggering Integer Overflow in Win32k GRFX */ #include <windows.h> #include <stdio.h> int main() { printf("[+] PoC Start for CVE-2026-34330\n"); // Attempt to create a scenario that triggers the integer overflow // In a real scenario, this involves specific GDI object manipulations HDC hdc = GetDC(NULL); if (hdc == NULL) { printf("[-] Failed to get device context\n"); return 1; } // This is a placeholder for the vulnerable API call sequence // which would cause the wraparound in size calculation. // e.g., CreateBitmap, ExtCreateRegion, etc. printf("[+] Triggering vulnerability logic...\n"); // Vulnerable call placeholder ReleaseDC(NULL, hdc); printf("[+] PoC End\n"); return 0; }