Perdition Security, a leader in cyber resilience, blends innovative solutions with a steadfast commitment to your digital safety. Our expertise is exemplified through our understanding and implementation of the latest standards in cybersecurity, such as the Common Vulnerability Scoring System (CVSS). On November 1st, 2023, the Forum of Incident Response and Security Teams (FIRST) officially launched the General Availability (GA) of CVSS version 4 (CVSS v4) following a period of public preview and feedback collection [1].

CVSS: A Brief Overview

The CVSS is an open framework designed to communicate the characteristics and severity of software vulnerabilities. It provides a numerical score to reflect a vulnerability’s severity, aiding organizations in prioritizing their vulnerability management processes.

What’s New in CVSS v4.0?

CVSS v4.0 represents a significant evolution in vulnerability assessment. This update offers enhanced fidelity in vulnerability assessment for the industry and the public, with a more granular breakdown of the Base Metrics for a nuanced understanding of vulnerabilities. The new version introduces a fresh nomenclature to denote combinations of Base, Threat, and Environmental metrics and new Base metric values for User Interaction, categorized as either Passive or Active.

Key Changes in CVSS v4.0

  • Nomenclature: The new nomenclature stresses the importance of not just the Base score but also Environmental and Threat metrics.
  • Supplemental Metric Group: This new optional metric group provides additional extrinsic attributes of a vulnerability, aiding in further risk analysis.
  • New Base Metric – Attack Requirement (AT): This metric offers more granularity than the previous “Attack Complexity (AC)” metric, capturing the prerequisite conditions that make an attack possible.
  • Updated Base Metric – User Interaction (UI): CVSS v4.0 proposes a more granular User Interaction metric, now providing more granularity to the amount of interaction required as Passive (P) or Active (A).
  • Retired Base Metric – Scope (S): Due to inconsistency in its usage, the Scope Metric was retired in favor of two sets of impact metrics: Vulnerable System Impact and Subsequent System(s) Impact.

Our Focus: Your Digital Safety

At Perdition Security, our focus is your digital safety. Understanding that each client has unique needs and challenges, we prioritize personalized solutions that cater to your specific requirements. Our proactive approach and dedication to education ensure that you are well-informed and prepared to tackle the latest cyber threats.

Balancing Security and Performance

We understand the intricate balance between security and performance. Our objective is to provide robust security solutions that enhance, rather than hinder, your business operations. Employing state-of-the-art technologies, we ensure that our security measures protect your business while optimizing system performance.

Integrating CVSS v4.0 into Our Practices

As cybersecurity threats evolve, so do the tools and frameworks we use. CVSS v4.0 represents a significant step forward in providing a more detailed and dynamic understanding of vulnerabilities. At Perdition Security, we are committed to integrating these advancements into our consultancy practices, ensuring that our clients benefit from the most comprehensive and up-to-date vulnerability management strategies.

Your Partner in Cyber Resilience

Perdition Security is your unwavering partner in the cyber landscape. We are available 24/7/365, offering continuous support and monitoring to ensure your systems remain secure. With our focus on both digital security and operational efficiency, we are not just about keeping your business safe—we’re also about making it thrive.

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[1] FIRST. (n.d.). CVSS v4.0 Specification Document. Retrieved from