: Improved enrollment for domains into the Symantec Endpoint Security (SES) cloud console for unified management. System Requirements for SEPM 14.3
: The antivirus scan now runs as a separate service from the main non-security service, ensuring more efficient memory usage and continuous protection even if the main service encounters issues.
The 14.3 series introduces significant architectural and security improvements aimed at modern threats like ransomware and "living-off-the-land" attacks:
Before downloading, ensure your server meets the latest hardware and software specifications found in the Symantec Tech Docs : Minimum Requirement Recommended Intel Pentium Dual-Core or equivalent 8-core or greater RAM 2 GB available 8 GB or more (especially if using SQL) Hard Drive 40 GB available 200 GB (for local SQL database) Database MS SQL Server 2017/2019 MS SQL Server 2019 How to Download: Step-by-Step
: Choose "Symantec Endpoint Security Complete" or "Enterprise" from your list.
: Log in to the Broadcom Support Portal using your enterprise credentials.
When updating to a new version of 14.3, do uninstall your existing manager. Run the installer to perform an "in-place upgrade," which preserves your existing policies, groups, and client communication settings. After the manager is updated, you can use the Client Deployment Wizard within SEPM to push the new 14.3 agents to your endpoints.
To download the latest Symantec Endpoint Protection Manager (SEPM) 14.3 version, you must use the Broadcom Support Portal . Since Broadcom's acquisition of Symantec, all software downloads, including the newest 14.3 RU10 (Build 14.3.12154.10000) released in late 2025, are managed through this centralized hub.
: Deep integration with the Antimalware Scan Interface (AMSI) for better detection of malicious scripts.