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performing-cve-prioritization-with-kev-catalog

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Fetch and parse the CISA Known Exploited Vulnerabilities (KEV) catalog, enrich it with EPSS scores and CVSS metrics, and build a multi-factor prioritization engine and report that ranks CVE remediation by real-world exploitation evidence and BOD 22-01 deadlines. Use when triaging a vulnerability backlog, deciding patch order across many CVEs, or building an automated KEV+EPSS prioritization workflow.

skills/performing-cve-prioritization-with-kev-catalog/SKILL.md

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# Performing CVE Prioritization with KEV Catalog

## Overview
The CISA Known Exploited Vulnerabilities (KEV) catalog, established through Binding Operational Directive (BOD) 22-01, is a living list of CVEs that have been actively exploited in the wild and carry significant risk. As of early 2026, the catalog contains over 1,484 entries, growing 20% in 2025 alone with 245 new additions. This skill covers integrating the KEV catalog into vulnerability prioritization workflows alongside EPSS (Exploit Prediction Scoring System) and CVSS to create a risk-based approach that prioritizes vulnerabilities with confirmed exploitation activity over theoretical severity alone.


## When to Use

- When conducting security assessments that involve performing cve prioritization with kev catalog
- When following incident response procedures for related security events
- When performing scheduled security testing or auditing activities
- When validating security controls through hands-on testing

## Prerequisites
- Access to vulnerability scan results (Qualys, Nessus, Rapid7, etc.)
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