---
title: Understanding vulnerability prioritization
source: https://docs.newrelic.com/docs/vulnerability-management/getting-started/prioritization
---

This document covers:

-   Where to find priority ranks in Security RX
-   What data factors into the priority ranks of vulnerabilities

## Viewing priority rank in Security RX

/\* 


  
    \*\*\[one.newrelic.com > All capabilities](https://one.newrelic.com/all-capabilities) > Security RX > (select vulnerabilities tab)\*\*
  
 \*/

To view the priority rank of vulnerabilities in Security RX, go to **[one.newrelic.com > All capabilities](https://one.newrelic.com/all-capabilities) > Security RX > All Vulnerabilities**.

The priority ranking is based on all known data about a vulnerability. The **Reason to prioritize** column is a summary and weighting of key CVSS (Common Vulnerability Scoring System), EPSS (Exploit Prediction Scoring System) and known active ransomware data.

## Data influencing priority rank

**Severity data**

**Severity** is based on the vulnerability's CVSS score. An open industry standard, CVSS uses a formula of several access and impact metrics to calculate the severity of the vulnerability.

This table shows the tags we've assigned corresponding to CVSS scores.

| Severity    | CVSS range |
| ----------- | ---------- |
| Critical    | 9.0 - 10.0 |
| High        | 7.0 - 8.9  |
| Medium      | 4.0 - 6.9  |
| Low         | 0.1 - 3.9  |
| Info / None | 0.0        |

**Active ransomware data**

**Active ransomware** are vulnerabilities that have been used in known ransomware campaigns (This data is sourced by New Relic from its official partner network). The severe impacts of ransomware incidents make these vulnerabilities a high priority.

The Cybersecurity & Infrastructure Security Agency (CISA) [defines ransomware](https://www.cisa.gov/stopransomware/ransomware-101) as "an ever-evolving form of malware designed to encrypt files on a device, rendering any files and the systems that rely on them unusable. Malicious actors then demand ransom in exchange for decryption. Ransomware actors often target and threaten to sell or leak exfiltrated data or authentication information if the ransom is not paid."

Explore CISA's page for [Known Exploited Vulnerabilities Catalog](https://www.cisa.gov/known-exploited-vulnerabilities-catalog) to learn more.

**Exploit probability (EPSS) data**

**Exploit probability** scores are based on EPSS, which rates the probability that a vulnerability will be exploited in the wild. In these cases, there are known instances of threat actors taking advantage of the vulnerability. EPSS scores can look low out of context, but security experts recommend giving higher priority to all vulnerabilities with an exploit probability above the 85th percentile. This indicates a significant risk that that vulnerability will be exploited.

Explore FIRST's page for [The EPSS Model](https://www.first.org/epss/model) to learn more.

This table shows the tags we've assigned to each level of exploit probability.

| Exploit probability        | EPSS percentile |
| -------------------------- | --------------- |
| Exploit extremely probable | > 95%           |
| Exploit very probable      | > 90%           |
| Exploit probable           | > 85%           |

### Example of ranking logic

A vulnerability that's "high" severity with an EPSS of "exploit probable" might rank higher than a vulnerability with a "critical" severity with an EPSS level that's lower than an 85th percentile probability of exploitation.

## What's next?

Now that you understand how vulnerabilities are prioritized, start managing them:

[Security RX for Applications](https://docs.newrelic.com/docs/vulnerability-management/applications/overview)

Start monitoring and remediating application vulnerabilities

[Security RX for Infrastructure](https://docs.newrelic.com/docs/vulnerability-management/infrastructure/overview)

Start monitoring and remediating infrastructure vulnerabilities

[Manage vulnerability status](https://docs.newrelic.com/docs/vulnerability-management/advanced/manage-vulnerability-status)

Change status to Ignored, Affected, or Fixed

[Set up alerts](https://docs.newrelic.com/docs/vulnerability-management/advanced/set-up-alerts)

Get notified when high-priority vulnerabilities are detected