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Vulnerability Management
Effective vulnerability management pairs standardized scoring with business context so you can fix the right issues first and prove progress.
What You'll Learn
- How to assess risk beyond CVSS scores
- How to prioritize remediation work
- How to measure and improve your program
1. Overview
Use a risk-based approach: combine severity, exploit intelligence, exposure, and asset criticality to decide what to fix and when. Repeatable workflows and metrics keep the program predictable.
2. Assess Risk
- Map assets by criticality (customer-facing systems and sensitive data rank highest).
- Check threat activity: active exploits, public proof-of-concept code, or targeted campaigns.
- Account for environment: internet exposure, authentication strength, monitoring, and compensating controls.
3. Prioritize Fixes
- Use a simple model like
severity × exposure × criticality, adjusted by exploit maturity. - Define clear tiers (for example, emergency within 24 hours for actively exploited issues on internet-facing critical systems; urgent within 7 days for high-severity issues on critical assets).
- Document exceptions with justification and a review date.
4. Remediate Effectively
- For emergency fixes, verify impact, apply mitigations, patch quickly, and validate the result.
- For planned work, test in staging, deploy in phases, and monitor for regressions.
- If you cannot patch immediately, isolate affected systems, tighten access, and increase monitoring until remediation is complete.
5. Measure and Improve
- Track mean time to detect and remediate, vulnerability backlog by severity, and SLA adherence.
- Report trends to executives (risk posture, major blockers) and operators (open issues, exceptions, next actions).
- Review incidents and scans regularly to refine workflows, automation opportunities, and training needs.
