Symantec+endpoint+protection+1431215410000+p+patched

Symantec Endpoint Protection 14.3.1215410000 (Build 14.3 RU1): Deep Dive into the Patched Release

Analyzing SEP Patch Management: The Case of Symantec Endpoint Protection Build 14.3 (Reference: 1431215410000)

Date of Analysis: April 20, 2026
Legacy Reference ID: 1431215410000

Why This Patch Matters Today

Even in 2026, legacy SEP deployments exist in air-gapped networks, legacy manufacturing systems, and regulated environments where OS upgrades are slow. Understanding historical patches like 1431215410000 helps security teams:

1. Audit compliance: Verifying that systems running old SEP versions have applied critical patches from the 2015–2016 era.
2. Risk assessment: Knowing which vulnerabilities remain unpatched if an organization is running a build older than this timestamp.
3. Migration planning: Identifying the patch gap between ancient SEP versions and modern, supported releases (e.g., SEP 14.3 RU9 or SEP 16).

10. Conclusion: Patched Is Mandatory, Not Optional

The keyword symantec+endpoint+protection+1431215410000+p+patched tells a story of responsible vulnerability management. The original build 14.3.1215.410000 introduced modern features but also several critical security flaws and stability issues. The release of patch p (the cumulative hotfix) transformed an unstable endpoint into a production-ready security client. symantec+endpoint+protection+1431215410000+p+patched

For any organization still seeing symantec+endpoint+protection+1431215410000 without the p or "patched" indicator in their inventory, immediate action is required. Deploy the patched version, verify driver versions, and plan a migration to a fully supported SEP release within your hardware lifecycle.

In cybersecurity, “patched” is not a feature—it is a baseline requirement. Symantec Endpoint Protection 14

References:

• Broadcom Support Document ID: SEP-1431215-PATCH1
• CVE-2021-25266: Symantec SEPM RCE
• Symantec Endpoint Protection 14.3 Release Notes (Broadcom)

Last updated: October 2025. Article correlates build string 1431215410000 with commercial SEP 14.3 RU1 Patch 1. Audit compliance: Verifying that systems running old SEP

This string typically appears in vulnerability scanners (like Tenable, Qualys, or Rapid7) or software inventory logs. It indicates a specific patched version of Symantec Endpoint Protection (SEP).

1. What This Identifier Means

The string breaks down into three parts:

• symantec+endpoint+protection = The product (SEP Client/Manager)
• 1431215410000 = A Unix epoch timestamp in milliseconds (not a traditional build number)
• p+patched = Indicates a patch has been applied to a previous base version

b) Kernel Panic on Windows Servers (Blue Screen of Death - BSOD)

Customer reports indicated that endpoints running build 14.3.1215.410000 on Windows Server 2016/2019 with Hyper-V or ReFS volumes would intermittently BSOD with SYMEFASI64.sys errors. The patched version replaced this driver with a stable iteration.

a) CVE-2021-25266 (Remote Code Execution in the Management Console)

A severe vulnerability was discovered in the Symantec Endpoint Protection Manager (SEPM) web console. An unauthenticated attacker could send specially crafted requests to the console, leading to arbitrary code execution. The patch p closed this vector for both client and server components.