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Vulnerability Assessment

You can’t patch what you don’t know about. A vulnerability assessment gives you a complete, prioritised inventory of every known weakness across your infrastructure — so your team can fix what matters most, first.

Vulnerability Register — Q1 2025 Validated 3 Critical 7 High 14 Medium 9 Low 6 Info CVE Affected System CVSS Status CVE-2024-3400 fw01.corp.net 10.0 PATCH NOW CVE-2024-1709 web01, web02 9.8 CRITICAL CVE-2023-44487 nginx-prod-01 7.5 HIGH ✓ 12 scanner false positives removed after manual validation Next scan due: 90 days · Last validated: today · 0 false positives
OSOSCP
CEHCEH
OWASP
ISO27001ISO 27001
NISTNIST
PTES
OSOSCP
CEHCEH
OWASP
NISTNIST

About This Service

What is Vulnerability Assessment?

A systematic, comprehensive scan and manual review of your IT infrastructure to identify, classify, and prioritise security vulnerabilities — giving you a clear, actionable risk register.

The gap between your assumed security posture and your actual posture grows every time new software is deployed or a configuration changes. Without regular assessment, unpatched vulnerabilities accumulate — and attackers actively scan for exactly these gaps.

What You Gain

Framework / Methodology

CVSS v3.1, NIST NVD, CIS Benchmarks

Typical Timeline: 3–7 days depending on scope

Report: Executive summary + full technical findings

Retest: Complimentary, included in every engagement

NDA: Signed before any technical discussion

Deliverables

What You Receive

Executive Summary Report

Risk overview and headline findings for management

Vulnerability Register

Complete inventory of all findings with CVSS scores, affected systems, CVE references, and severity ratings

Prioritised Remediation Guide

Fix instructions ordered by risk severity so your team patches what matters most first

False Positive Analysis

Manual review results confirming genuine findings and removing scanner noise

Retest Report

Confirms all critical and high vulnerabilities resolved after remediation

Scope

What We Test

Network devices — routers, switches, firewalls

Servers — Windows, Linux, and application servers

Workstations and endpoint devices

Web applications and public-facing services

Cloud infrastructure and SaaS configurations

Database systems and data storage

Patch levels and outdated software versions

Default and weak credentials

Missing security configurations and hardening gaps

Third-party software and dependency vulnerabilities

Process

How We Run This Engagement

Every engagement follows a defined, transparent process — no surprises, no hidden scope changes, and no invoice for work you did not agree to.

1

Scoping

Define IP ranges, systems, and environments to be assessed.

2

Automated Scanning

Run industry-standard vulnerability scanners across all in-scope systems.

3

Manual Validation

Manually review scanner output to eliminate false positives and confirm real findings.

4

Risk Classification

Classify all findings by CVSS score, exploitability, and business impact.

5

Reporting

Deliver a clear vulnerability register with prioritised remediation guidance.

6

Retest

Verify critical and high vulnerabilities have been resolved.

Why Us

Why Work With Vigilant Defenders

Manual Testing. Not Scanner Output.

Automated tools find known signatures. Our certified consultants find the chained attack paths, logic flaws, and context-specific vulnerabilities that no scanner will surface. Every finding we report is manually verified — zero false positives.

Reports Built for Action, Not Filing.

Every finding includes a proof-of-concept, a CVSS risk score, the affected system or endpoint, and step-by-step remediation guidance written for the team that has to fix it. Your developers and your board both get a report they can use.

Confidentiality From Day One.

We sign a formal NDA before any technical discussion begins. Your vulnerabilities, your architecture, and your engagement findings are treated with the same confidentiality as attorney-client communications. We have never disclosed client information.

We Stay Until It's Fixed.

Every engagement includes a complimentary retest once your team has addressed the findings. We verify that the vulnerabilities are genuinely closed — not surface-patched — and issue a formal retest certificate you can share with clients and auditors.

Manual Validation. Zero False Positives.

Every vulnerability scanner produces false positives. Our consultants manually review every finding before it goes in your report — confirming it is real, understanding its actual exploitability in your environment, and removing the noise that wastes your IT team’s time. You receive findings you can act on immediately.

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Network Pen Testing

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Enterprise Pen Testing

Full-scope, multi-vector assessment of your entire enterprise.

Cloud Pen Testing

Extend your assessment to your AWS, Azure, or GCP environment.

FAQ

Vulnerability Assessment — Frequently Asked Questions

What is the difference between vulnerability assessment and penetration testing?

A vulnerability assessment identifies and prioritises weaknesses but does not actively exploit them. Penetration testing goes further — an expert attempts to exploit vulnerabilities to demonstrate real-world impact. For organisations new to security testing, a vulnerability assessment is often a good starting point.

Best practice is quarterly assessments at minimum, with continuous monitoring for high-risk environments. Many compliance frameworks including PCI DSS and ISO 27001 require regular vulnerability assessments.

Yes. Our assessments cover on-premise infrastructure, cloud environments (AWS, Azure, GCP), and SaaS configurations.

You receive a prioritised vulnerability register with CVSS scores, descriptions of each finding, affected systems, and step-by-step remediation guidance.

Find Out What Vulnerabilities Are Present Across Your Infrastructure

Get a free scoping consultation — no commitment required. We’ll scope the right vulnerability assessment engagement for your environment and send a fixed-fee proposal within 24 hours.