Symantec Endpoint Protection 14.3 Ru6 System | Requirements

In this guide, we break down every requirement—from minimal RAM to disk I/O thresholds, supported OS versions, and Virtualization Optimizations. Unlike earlier 14.x builds, SEP 14.3 RU6 introduces a hardened kernel driver model. Broadcom has deprecated several legacy components while adding support for newer Windows 11 22H2 features (like Smart App Control). Consequently, the system requirements are not backward-compatible with mid-2000s hardware.

| Service | Protocol | Port | Direction | |---------|----------|------|------------| | SEPM console to clients (HTTP fallback) | TCP | 8014 | Bi-directional | | SEPM console to clients (HTTPS encrypted) | TCP | 8443 | Bi-directional | | Client-to-management (heartbeat) | TCP | 443 | Outbound (client → SEPM) | | LiveUpdate content download | HTTP/HTTPS | 80, 443 | Outbound to Broadcom CDN | | SQL Server (external DB) | TCP | 1433 | SEPM → SQL | | Syslog forwarding | TCP/UDP | 514 | SEPM → SIEM | symantec endpoint protection 14.3 ru6 system requirements

RU6 disables TLS 1.0 and 1.1. All communication requires TLS 1.2 or higher. Part 5: Storage Performance Considerations (The Overlooked Bottleneck) SEP 14.3 RU6 performs heavy random I/O during pattern updates and memory dump scans. Using slow storage can reduce endpoint responsiveness by up to 40%. In this guide, we break down every requirement—from

Download the 14.3 RU6 evaluation ISO from Broadcom Support, run the Pre-Upgrade Check Tool, and schedule a pilot deployment on 10–20 test endpoints. Last updated: October 2025. Requirements subject to change by Broadcom. Always verify with the official SEP_14.3_RU6_Release_Notes.pdf . run the Pre-Upgrade Check Tool