Offensive Security

Vulnerability Assessment

A systematic scan and human-validated review of your networks, hosts, and applications. You get real risk, not a raw scanner dump.

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Overview

A vulnerability assessment is a broad, structured review of your in-scope systems designed to identify known vulnerabilities, misconfigurations, and missing patches before someone else finds them. The goal is comprehensive coverage: proactively identify security vulnerabilities across your entire attack surface, not exploit them depth-first. A comprehensive vulnerability assessment service is the foundation of any mature cybersecurity programme.

We combine automated vulnerability scanning with manual validation. Raw scanner output contains false positives and noise that waste your team's time. We triage every finding, confirm what is real, rate it by exploitability and business impact, and produce a prioritised list your engineers can act on without guessing. The process covers network infrastructure, servers and workstations, firewall and perimeter devices, and web-facing services. We look for common vulnerabilities including weak passwords, missing patches, access control gaps, cross-site scripting, and configuration settings that automated tools alone routinely miss.

Scope and written authorisation are agreed before any scanning begins. CVE-referenced findings, where applicable, are validated against your actual environment, so you know which identified vulnerabilities are real and which are false positives. The vulnerability analysis we deliver lets you prioritize remediation by real risk, not raw CVSS scores. Regular vulnerability assessments give your security team a repeatable baseline and feed directly into vulnerability management over time. Strengthening your cyber defenses against the security issues that matter most is cheaper before an incident than after it. If you later need to test whether those vulnerabilities can be actively exploited, a penetration test is the natural next step.

What’s included

Authenticated and unauthenticated scanning of in-scope assets
Network, host, and service vulnerability identification across systems and software
Manual validation and false-positive triage
CVE-referenced, risk-rated findings prioritised by exploitability and business impact
Practical, prioritised remediation guidance to address security issues
Optional remediation re-test

How we work

01
Scope and authorise
We agree the in-scope assets, testing windows, and obtain written authorisation before any scanning begins. Sensitive data flows and critical systems are noted so they receive appropriate attention during the assessment.
02
Assess
We run automated scanning combined with manual review across the in-scope environment, covering wired and wireless networks, servers and workstations, and web-facing services. Configuration settings and access controls are reviewed alongside known CVE coverage.
03
Validate and rate
We triage results, confirm real findings, discard false positives, and rate each issue by exploitability and business impact. Critical vulnerabilities are highlighted for immediate action. Vulnerabilities identified as genuine risks are clearly separated from low-confidence scanner noise.
04
Report and guide
We deliver a prioritised report with an executive summary and technical detail, and walk your team through how to remediate each finding. We also note which security controls were absent or misconfigured so you can identify and address security gaps beyond the individual findings.

What you get

Vulnerability assessment report with validated, risk-rated findings
Executive summary and technical detail, including identified vulnerabilities mapped by severity
Prioritised remediation roadmap to address security issues by risk level
Optional remediation re-test

Frequently asked questions

What is the difference between a vulnerability assessment and a penetration test?

A vulnerability assessment casts a wide net: it identifies and prioritises as many security weaknesses as possible across your environment without actively exploiting them. A penetration test is depth-first: a tester actively exploits weaknesses to prove real-world impact and shows how issues chain together. Many organisations run both, starting with an assessment to establish a baseline.

How often should we run a vulnerability assessment?

Quarterly is common, and after any significant infrastructure change. Regulated environments such as PCI DSS have their own scanning cadences on top of that. Regular vulnerability assessments keep your overall security posture current as your environment evolves. We can set up a recurring schedule that fits your programme.

Do we need to be PCI DSS compliant to commission one?

No. Any organisation that wants to understand its exposure benefits from a vulnerability assessment. It is a sensible baseline for any security programme, independent of regulatory requirements. Cybersecurity controls like patch management and proactive vulnerability management apply well before a compliance mandate does.

What types of vulnerability assessments do you offer?

We cover the main types of vulnerability assessments: external network assessments targeting internet-facing systems, internal assessments of your inside environment, and web application vulnerability testing. Each is scoped to your environment and goals. Threat intelligence can be layered on to prioritise findings by what malicious actors relevant to your sector are actively exploiting.

How do vulnerability assessments help with incident response readiness?

Vulnerability assessments help by reducing the attack surface available to malicious actors before a security event occurs. When identified vulnerabilities are remediated promptly, the probability and severity of incidents that would trigger incident response are lower. The assessment report also informs your incident response team about which systems carry the highest risk exposure, so detection and response efforts can be focused where they matter most.

See the kind of report you get

Every engagement ends with a report you can act on: an executive summary, CVSS-aligned findings, reproduction evidence, and prioritised fixes. Ask for a redacted sample and we will share one.

Request a sample report