Understanding Pentest Reports: A Guide for Executives and IT Managers
The penetration test report lands on the desk – 80 pages, full of CVSS scores, screenshots, and technical jargon. For IT managers and executives, this is often a sealed book. Yet, the report contains the most important decision-making bases for security investments. A translation guide.
TL;DR
- The CVSS score alone is not enough – context and exploitability decide
- What’s critical is what an attacker can actually exploit, not what’s theoretically possible
- The Executive Summary is the most important part – it lists the business risks
- Findings without a remediation plan are worthless – measures must be prioritized and scheduled
The Executive Summary: Where the Decision Begins
The Executive Summary is written for non-technical readers and answers three questions: How good is our overall security situation? What are the most critical risks? What needs to happen immediately? A good pentest report provides a clear risk assessment here using traffic light colors or a maturity scale.
If the Executive Summary only lists technical findings without business context, the report is poorly written. Demand that the service provider provide an assessment: What does finding X mean for our business?
Understanding CVSS – and Knowing Its Limitations
CVSS (Common Vulnerability Scoring System) rates vulnerabilities on a scale from 0-10. Critical (9.0-10.0), High (7.0-8.9), Medium (4.0-6.9), Low (0.1-3.9). This is useful as a first orientation – but misleading as the sole prioritization criterion.
Why: A CVSS 9.8 on an internal test server without customer data is less critical than a CVSS 6.5 on the production system with payment data. Context beats score. Ask: Which systems and data are affected? And: Can an external attacker exploit the vulnerability?
Prioritizing Findings: The Risk Matrix
The most sensible prioritization combines two dimensions: exploitability (How easy is the attack?) and business impact (What happens if it succeeds?). This results in a 2×2 matrix: Easy to exploit + high impact = fix immediately. Hard to exploit + low impact = plan long-term.
Demand this assessment from the pentest service provider. A good report not only delivers findings but also a prioritized remediation roadmap with timeframes and effort estimates.
After the Report: Tracking Remediation
The report is not an achievement – it is the starting point. Each finding needs: a responsible person, a deadline, a defined fix, and verification after implementation. Without a tracking process, pentest findings get lost in the priority competition of day-to-day business.
Best Practice: Integrate findings into the existing ticket system, track remediation status in a monthly security review, and perform a retest for critical and high findings after 90 days.
Key Facts
Findings per Pentest: On average, 28 findings, of which 4-6 are Critical/High (NCC Group)
Remediation Rate: Only 56 percent of Critical findings are resolved within 90 days (Cobalt)
Retest Rate: 30 percent of “resolved” findings do not pass the retest (Veracode)
Frequently Asked Questions
Every question is locked. A tap unlocks the answer.
How often should a pentest be conducted?
At least annually. Additionally, after major changes (new application, cloud migration, architecture overhaul). NIS2 requires “regular” tests – annually meets this requirement. DORA requires TLPT every 3 years for system-relevant institutions.
How much does a pentest cost?
Externally: €8,000-€30,000 for a web application, €15,000-€50,000 for a network assessment, €30,000-€100,000+ for a red team engagement. Internally: Bug bounty programs starting at €10,000 prize budget. The price correlates with scope and depth.
What is the difference between a pentest and a vulnerability scan?
A vulnerability scan is automated and finds known vulnerabilities (CVEs). A pentest is conducted by humans who not only find vulnerabilities but actively exploit and chain them. The pentest shows what a real attacker can achieve – the scan only shows what is theoretically vulnerable.
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