22793.rar Apr 2026

No complex exploit was needed; the Windows Startup folder handled the execution.

RARLAB removed unacev2.dll entirely to fix the issue.

The flaw existed in unacev2.dll , a third-party library WinRAR used to unpack files. Path Traversal: Attackers could bypass folder restrictions. 22793.rar

WinRAR had over 500 million users when the bug was found. ✅ How to Stay Safe Update WinRAR: Ensure you are using version 5.70 or newer .

The archive contains a file with a relative path like C:\Users\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\exploit.exe . No complex exploit was needed; the Windows Startup

The file is an ACE archive renamed with a .rar extension to trick the user.

The file is a well-known proof-of-concept (PoC) archive used to demonstrate a critical vulnerability in WinRAR (tracked as CVE-2018-20250 ). Path Traversal: Attackers could bypass folder restrictions

This vulnerability allowed attackers to execute code remotely by simply having a user extract a specially crafted archive. 🛡️ The Vulnerability: CVE-2018-20250