: Version 6.21 is outdated as of April 2026. Critical security vulnerabilities, such as CVE-2023-40477 and CVE-2023-38831 (which allowed attackers to execute code via malicious archives), were discovered after 6.21 and fixed in version 6.23. Using an older version like 6.21 leaves you exposed to these exploits.
: RARLAB only provides installer-based versions (e.g., .exe files) for Windows. They do not offer an official "portable" .rar version. Download File WinRAR_6.21 Portable.rar
Instead of using an unofficial portable version of 6.21, you should use the latest stable version (currently or higher) directly from official sources to ensure you have the most recent security patches: Official Website : win-rar.com Developer Site : rarlab.com : Version 6
Downloading a file named from a third-party source carries significant security risks. While WinRAR version 6.21 is a legitimate release, "portable" versions are not officially distributed by the developers, RARLAB , and are often repackaged by unknown parties. Security Assessment : RARLAB only provides installer-based versions (e