Full Report
At Infosecurity Europe 2025, Axonius’ Jon Ridyard proposed seven best practices to build mature vulnerability management processes
Analysis Summary
# Best Practices: Building a Mature Vulnerability Management Program
## Overview
These best practices focus on evolving vulnerability management from a reactive patching process into a continuous, context-aware, and risk-prioritized security discipline, aligning it with modern security principles like Continuous Threat Exposure Management (CTEM) to handle the explosion of reported vulnerabilities effectively.
## Key Recommendations
### Immediate Actions
1. **Transition Mindset from Program to Process:** Reframe vulnerability management as a **continuous process** rather than a program with an end date. This mandates ongoing evaluation and improvement.
2. **Integrate CTEM Concepts:** Immediately begin integrating aspects of Continuous Threat Exposure Monitoring (CTEM) into the current vulnerability management flow to ensure constant relevance and adjustment.
3. **Move Beyond CVSS Alone:** Cease reliance solely on the Common Vulnerability Scoring System (CVSS) for prioritization; recognize its technical context limitations.
### Short-term Improvements (1-3 months)
1. **Implement Context-Based Prioritization:** Supplement technical scores (CVSS) with critical business context, such as asset criticality, internet exposure, and active exploitation status (threat intelligence).
2. **Establish Continuous Measurement:** Institute regular cycles of **breach simulation, automated testing, and attack path analysis** to stress-test the effectiveness of current security controls and vulnerability remediation steps.
3. **Stop Reacting to Siloed Events:** Ensure that scanning results and vulnerability reports automatically feed into the continuous process, rather than solely reacting to one-off, isolated events or only "celebrity" CVEs.
### Long-term Strategy (3+ months)
1. **Establish Contextual Prioritization Framework:** Formalize a repeatable methodology for determining vulnerability remediation order based on the *actual risk* posed to the organization, factoring in all contextual data points consistently.
2. **Automate Threat Context Injection:** Develop or procure capabilities to automatically ingest and correlate threat intelligence regarding active in-the-wild exploitation directly into the remediation workflow to drive prioritization decisions.
3. **Ensure Full Lifecycle Visibility:** Aim for comprehensive visibility across all IT assets and liabilities to ensure that remediation efforts address the complete threat exposure landscape, not just scanned environments.
## Implementation Guidance
### For Small Organizations
- **Focus on Critical Assets First:** Implement a simplified asset inventory and prioritize vulnerability scanning and patching efforts specifically on systems that directly face the internet or handle sensitive data, using context immediately.
- **Leverage Free/Low-Cost Tools:** Utilize built-in vulnerability scanners or widely available community tools, focusing initial effort on process establishment rather than complex platform deployment.
### For Medium Organizations
- **Formalize the Prioritization Matrix:** Develop a documented, repeatable matrix that combines CVSS, asset importance (e.g., Tier 1, Tier 2), and basic threat indicators to calculate a risk score for remediation.
- **Schedule Regular Attack Path Analysis:** Dedicate quarterly time slots to manually or semi-automatically trace potential exploitation paths within the network to validate segmentation and control efficacy.
### For Large Enterprises
- **Implement Full CTEM Framework:** Fully integrate vulnerability management into a broader CTEM strategy, utilizing automation for continuous threat modeling and control validation against current threat vectors.
- **Adopt Advanced Risk Scoring:** Implement platforms capable of ingesting disparate data sources (scanning, threat feeds, CMDB/Asset Inventory) to generate highly granular, real-time risk scoring that dictates remediation SLAs organization-wide.
- **Automate Remediation Workflows:** Focus on automating ticket creation, assignment, tracking, and verification, minimizing manual handoffs between security, IT Operations, and application teams.
## Configuration Examples
*No specific configuration examples were provided in the source text, as the focus was on strategic process improvement.*
## Compliance Alignment
While the article doesn't cite specific compliance documents, maturing a vulnerability management process aligns directly with established security frameworks:
- **NIST Cybersecurity Framework (CSF):** Core functions of **Identify** (Asset Management), **Protect** (Protective Measures), and **Detect** (Continuous Monitoring).
- **ISO/IEC 27001:** Requirements related to asset management, change control, and monitoring/review processes.
- **CIS Critical Security Controls (CSC):** Specifically aligns with Control 3: **Asset Inventory**, Control 4: **Vulnerability Management**, and Control 1: **Inventory and Control of Hardware Assets**.
## Common Pitfalls to Avoid
- **Treating VM as a "Program":** Starting with an end goal date in mind, leading to complacency once initial goals are met. Vulnerability management must be continuous.
- **Sole Reliance on CVSS:** Accepting the technical severity score as the final word, which often leads to wasted effort patching low-risk vulnerabilities while under-prioritizing high-impact, contextually dangerous findings.
- **Siloed Reactive Response:** Only reacting to external announcements or one-off scanning reports without integrating these findings into the established, automated remediation cycle.
## Resources
- **Framework Guidance:** Review official documentation for **Continuous Threat Exposure Management (CTEM)** frameworks to guide process integration.
- **Scoring Context:** Study **CVSS v3.1/v4.0** documentation to understand its components, but supplement this knowledge with threat intelligence feeds.
- **Breach Simulation Tools:** Investigate tools capable of automated attack path analysis and breach and attack simulation (BAS) for ongoing validation.