safe userinfo cs 1.6 amxx plugin download

Last updated: August 26, 2025

A dangerous new exploit, which emerged in 2025, has been discovered that can crash Counter-Strike 1.6 servers, including those running the latest ReHLDS and ReGameDLL versions.

This critical vulnerability allows a malicious client to send a malformed “userinfo” string, causing a catastrophic Host_Error that disconnects every player from your server.

This makes the safe userinfo amxx plugin a vital cs 1.6 server protection and a definitive cs 1.6 server crash fix.

If you’re looking to secure your counter-strike 1.6 server and protect against exploits, this anti-exploit tool is the most effective solution available to prevent server crash and ensure stability.

download and installation safe userinfo amxx plugin

The userinfo.amxx.zip archive contains both the compiled plugin (userinfo.amxx) and its source code (userinfo.sma).

1. Download the Archive: Get the file from the link below.  
2. Extract the Files: Unzip the archive.
3. Upload the Plugin: Copy the userinfo.amxx file to your server’s cstrike/addons/amxmodx/plugins/ directory.
4. Activate the Plugin: Open your cstrike/addons/amxmodx/configs/plugins.ini file and add the following line at the end: userinfo.amxx
5. Restart the Server: Fully restart your server to ensure the plugin is loaded and active.

Requirements: This plugin requires AMX Mod X and the ReAPI module to be installed on your server.

How the new userinfo exploit crashes your server

This exploit, targeting a specific ReHLDS vulnerability, works by injecting invalid data into a client’s userinfo string.

This data, often containing Unicode control characters or other malformed sequences, is not properly handled by the server engine.

When the server attempts to process this corrupted information, a critical error occurs. This ReGameDLL exploit can cause widespread disruption.

Server owners and developers who have experienced this attack report seeing the following messages in the console:

Host_Error: C_ParseServerMessage: Illegible server message - svc_bad Host_Error: DispatchUserMsg: User Msg ItemPickup/93 sent too much data

This indicates that a malicious client has successfully connected and is sending data that the server cannot process, leading to a complete server crash.

This exploit is especially dangerous as it doesn’t just affect one player – it can take down the entire server and all connected clients.

How the safe userinfo amxx plugin protects your server

The “Safe Userinfo AMXX” plugin acts as a proactive security gateway. Instead of allowing the malicious data to reach the server’s core engine, the plugin intercepts and validates all incoming “userinfo” strings. This creates a powerful CS 1.6 server security layer.

It uses a series of rigorous checks to ensure that the “userinfo” string is a valid UTF-8 string, free of any harmful characters.

If an invalid string is found, the plugin immediately disconnects the offending client with the message “Invalid userinfo”.

This safe userinfo anti-crash plugin provides a robust and efficient defense, ensuring the cs 1.6 server stability you need.

Why this plugin is a must-have for your cs server

• Essential Exploit Fix: It directly addresses the most recent and dangerous server-crashing exploit.
• Proactive Security: Instead of waiting for a crash, the plugin actively blocks malicious clients before they can cause harm.
• Lightweight and Efficient: It provides powerful server protection with a minimal performance footprint, ensuring your server remains fast and responsive.
• Simple Installation: A quick and easy process gets your server protected in minutes.

Safe Userinfo amxx and sma plugin created by the_hunter 1.4 version.” plugin is an essential, lightweight cs 1.6 antiexploit solution to a critical problem.

It directly addresses a modern exploit that can paralyze even a well-maintained server.

By download and installing this safe userinfo amxx plugin, you are taking a proactive step to protect your community from malicious attacks and ensure the long-term stability of your Counter-Strike 1.6 server.

For more essential plugins and tools to secure and enhance your server, be sure to visit our main site.