14.3.12154.10000 P... — Symantec Endpoint Protection

As of 2026, this build is three years old from a patch perspective. Broadcom has released SEP 14.3 RU3 (build 14.3.558.0000), RU4, and RU5 (14.3.11613.2000) with critical updates including:

Recommended upgrade path per Broadcom:

SEP 14.3.12154.10000 → 14.3.8264.5000 (RU4) → 14.3.11613.2000 (RU5) Symantec Endpoint Protection 14.3.12154.10000 P...

Do not attempt to jump directly to 14.3 RU5 without consulting the release notes; intermediate database schema changes may break SEPM.

Symantec Endpoint Protection (SEP) 14.3.12154.10000 is a point release in the SEP 14.x product line providing endpoint protection for enterprise environments. It combines traditional signature-based anti-malware, machine-learning and heuristic detection, behavioral protection, device and application control, firewall, intrusion prevention, and client management features. This paper summarizes the product architecture, key features and components in this build, deployment and management considerations, security capabilities, performance and compatibility considerations, administration and reporting, recommended practices for enterprise rollout, known limitations and mitigations, and references for further technical resources. As of 2026, this build is three years

If you encounter issues while deploying build 14.3.12154.10000:

This build is a full maintenance release under the SEP 14.3 umbrella. Unlike major version jumps (e.g., 14.2 to 14.3), this build number indicates a cumulative patch set that includes: Recommended upgrade path per Broadcom:

Key identifiers:

While fully-fledged EDR requires Symantec EDR (formerly SEP Cloud), build 14.3.12154.10000 introduces local event logging in EDR-compatible JSON format. This prepares on-prem customers to feed logs into a SIEM or the Broadcom EDR appliance.