CVE-2026-32177 .NET本地权限提升漏洞

/* * PoC Concept for CVE-2026-32177 (.NET Heap Overflow) * This code demonstrates the concept of triggering a buffer overflow. * Actual exploitation depends on specific vulnerable .NET API calls. */ using System; using System.Runtime.InteropServices; namespace HeapOverflowPoC { class Program { // Simulating a method that copies data unsafely static void UnsafeCopy(byte[] source, int offset) { // In a real vulnerable scenario, bounds checking might be missing // or incorrect when dealing with unmanaged memory / unsafe contexts. unsafe { fixed (byte* p = source) { // Simulate writing past the buffer boundary for (int i = 0; i < source.Length + offset; i++) { p[i] = 0x41; // 'A' } } } } static void Main(string[] args) { Console.WriteLine("[+] Triggering PoC for CVE-2026-32177..."); try { // Allocate buffer byte[] payload = new byte[100]; // Attempt to overflow UnsafeCopy(payload, 50); Console.WriteLine("[-] Exploit failed to trigger crash."); } catch (Exception ex) { Console.WriteLine("[!] Exception caught: " + ex.Message); } } } }