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eXposure Factor EXF

Edgescan eXposure Factor (EXF)

Helping you prioritize vulnerability mitigation at scale

Improving MTTR (Mean Time To Remediation) of critical weaknesses with EXF

Prioritization is key once you can assume a list of validated and accurate vulnerabilities. Edgescan only ever delivers validated and accurate vulnerabilities with virtually no false positives. The ability to answer the question “What should I fix first?” dramatically improves efficiency when dealing with resource management and provides optimum value to your business and security posture. Let’s fix and secure what matters.

Edgescan has designed a system to help you easily figure out which vulnerabilities are most urgent:

We call it EXF (Edgescan eXposure Factor), which uses dynamically generated breach probability data via:

  1. Exploit Prediction Scoring System (EPSS) combined with
  2. CVSS (Common Vulnerability Scoring System) score and;
  3. if the vulnerability is flagged by the CISA (Cybersecurity & Infrastructure Security Agency) and is on the CISA KEV (Known Exploitable Vulnerability catalogue).

By combining this metadata and applying it to a discovered & validated vulnerability, Edgescan provides a simple 0 to 100 scoring system where a lower score indicates minimal risk and a higher score signifies greater vulnerability.

• The Edgescan eXposure Factor is displayed to the user on the Vulnerabilities page under the title EXF.
• EXF is re-calibrated daily via dynamic feeds to keep pace with exploitation intelligence “in the wild.”

 


EXF values highlighted based on Vulnerability Severity/CVSS, EPSS, and CISA KEV presence.

 

Combining EXF with other Asset Metadata:

Edgescan gives you the ability to set the relative criticality and set associated metadata relating to an asset. By leveraging search criteria, you can focus on high EXF-scoring vulnerabilities across critical assets even if you have thousands of systems under management.

E.g., “ Show me EXF scores for all assets marked critical across my global landscape….”

Asset “Tagged” as “Critical.”

 


Vulnerabilities with high CVSS scores and associated EPSS/EXF.