It looks like you're referencing a version string for Symantec Endpoint Protection (SEP). The full version appears to be:
Network Connectivity Bug: An issue was identified where endpoints could lose network connectivity after upgrading to RU9 if "Out-of-Band scanning" was enabled in the Intrusion Prevention policy.
The built-in Intrusion Prevention System (IPS) signatures were updated to cover: Symantec Endpoint Protection 14.3.11213.9000 Te...
Provides detailed, automated reports and real-time logs that help IT teams quickly identify and remediate security gaps. Compliance:
Below is the content of the official Release Notice for that specific version, which serves as the primary documentation ("paper") for this build. It looks like you're referencing a version string
This build addresses several known issues identified in previous iterations:
In the quiet corridors of the Global Data Exchange, Version 14.3.11213.9000 This build is compatible with the SES Complete
Final verdict: If you are still on SEP 12.x, upgrade to 14.3.11213.9000 immediately. If you are evaluating new solutions, consider SES Cloud, but for on-prem dominance, this version remains a top contender.