Protection 14.3 Build 558 | Symantec Endpoint

Symantec Endpoint Protection (SEP) version 14.3 (Build 14.3.558.0000) , released on May 5, 2020

Symantec Endpoint Protection 14.3 Build 558 remains a cornerstone for businesses that prioritize a "defense-in-depth" strategy. By combining high-performance scanning with sophisticated behavioral AI, this build ensures that endpoints remain secure against an increasingly hostile digital landscape. For administrators, it offers a reliable, manageable, and scalable solution to keep the enterprise protected.

: Added full support for IPv6 communication between Windows, Mac, and Linux clients and the Symantec Endpoint Protection Manager (SEPM). WSS Traffic Redirection symantec endpoint protection 14.3 build 558

While version 14.3.558 is still within its standard support window until December 31, 2025

Intrusion Prevention and FirewallThe build includes updated IPS signatures that block network-based attacks. It monitors traffic in real-time, effectively shielding unpatched vulnerabilities from being exploited across the local network. Symantec Endpoint Protection (SEP) version 14

: Expanded compatibility to include Ubuntu 18.04, RHEL 8, and CentOS 8. Security Management : Includes support for Microsoft SQL Server 2019

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Upgrade Path: To provide content updates to 14.3.558 clients, the Symantec Endpoint Protection Manager (SEPM) must also be running at least version 14.3.558. Status and Recommendations