22793.rar May 2026

WinRAR failed to properly sanitize these paths, allowing the file to be written outside the intended extraction folder. ⚠️ Security Implications

The file is a well-known proof-of-concept (PoC) archive used to demonstrate a critical vulnerability in WinRAR (tracked as CVE-2018-20250 ). 22793.rar

The flaw existed in unacev2.dll , a third-party library WinRAR used to unpack files. Path Traversal: Attackers could bypass folder restrictions. WinRAR failed to properly sanitize these paths, allowing

No complex exploit was needed; the Windows Startup folder handled the execution. Path Traversal: Attackers could bypass folder restrictions

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

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 .

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