---
title: "EPSS Technical Note"
slug: "epss-technical-note"
updated: 2026-10-22T15:02:28Z
published: 2026-10-22T15:02:28Z
canonical: "docs.safe.security/epss-technical-note"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.safe.security/llms.txt
> Use this file to discover all available pages before exploring further.

# EPSS Technical Note

Balbix currently uses V4, released 3/17/25.

The data is sourced from FIRST ([https://api.first.org/epss/](https://api.first.org/epss/)), [https://www.first.org/epss/api](https://www.first.org/epss/api)

You can see Balbix listed here: [https://www.first.org/epss/who_is_using/](https://www.first.org/epss/who_is_using/)