UK-based Vulnerability Operations Centre (VOC)
Modern organisations operate in environments where new vulnerabilities emerge daily, attack surfaces grow constantly, and threat actors move rapidly to exploit weaknesses, often well before traditional patch cycles can respond. The accelerating use of AI by attackers is compressing exploitation windows from days to hours, making timely, intelligence-led prioritisation more important than ever.
The Nomios Vulnerability Operations Centre (VOC) delivers continuous vulnerability management built on Gartner’s Cyber Threat and Exposure Management (CTEM) framework. Our service consolidates all sources of vulnerability, threat, and asset data into a single operating model that helps you identify, prioritise, and remediate risks before they impact your business.
By combining automation, real-world exploit intelligence, advanced tooling, and specialist analysts, we help you reduce your attack surface, gain full visibility of your exposure, and maintain a strong and resilient security posture.
The challenge of modern vulnerability management
Most organisations struggle to stay on top of vulnerabilities because the volume of findings is high and resources are stretched. Common issues include:
- Limited visibility of assets across cloud, on-premises, OT, and SaaS environments
- Thousands of open CVEs with no clear, evidence-based prioritisation
- Limited understanding of real exploitability and business impact
- Manual processes and inconsistent remediation workflows
- Increasing compliance pressure from NIS2, ISO 27001, DORA, and other frameworks
- Difficulty maintaining an accurate, continuously updated view of the attack surface
These challenges make it difficult to reduce real business risk. Without continuous visibility and intelligence-led prioritisation, vulnerabilities can remain unaddressed for months, creating exploitable exposure long after patches become available.
A CTEM-powered, intelligence-led vulnerability management service
The Nomios VOC closes this gap with a fully managed service that delivers continuous asset discovery, vulnerability assessment, threat intelligence enrichment, and risk-based prioritisation. The service is built on the CTEM lifecycle (Scoping, Discovery, Prioritisation, Validation, and Mobilisation), ensuring a complete and continuous view of your exposure.
How we prioritise: beyond CVSS scores
- Not all vulnerabilities are equal, and CVSS scores alone are a poor guide to remediation priority. Our approach combines multiple layers of intelligence to help you focus on what genuinely matters.
Threat Exposure Score
- For each CVE, we calculate a composite Threat Exposure Score incorporating EPSS, KEV status, zero-day status, and media or threat actor attention. This helps differentiate between multiple P0 or P1 CVEs when resources require sequencing.
CISA Known Exploit Vulnerabilities (KEV) catalogue
- CVEs listed on the KEV are verified as actively exploited in the wild. We cross-reference our GTI priority scoring against the KEV and can flag KEV-listed vulnerabilities for mandatory remediation where required, including for regulatory compliance obligations.
EPSS (Exploit Prediction Scoring System)
- EPSS provides a daily-updated probability score for each CVE being exploited in the next 30 days. EPSS is one of the inputs into the GTI risk rating, and is also used directly within our Threat Exposure Score to further rank findings within the same priority tier.
Google Threat Intelligence (GTI) priority score
- GTI consolidates three key signals into a single priority rating (P0 to P4): Exploitation State, Exploit Availability, and Risk Rating. By focusing on P0 and P1 CVEs, we reduce the field from over 350,000 known CVEs to roughly 4,000 that represent real, active threat. GTI typically flags critical vulnerabilities before they appear on the CISA KEV list, providing earlier warning and faster response.
Business Exposure Score
- For each affected asset, we calculate a Business Exposure Score based on customer-defined asset criticality tags and whether the system is internet-exposed. Internet-facing assets receive significantly elevated priority, supporting the recommended target of patching internet-exposed systems within 24 hours of an exploit becoming available.
Combined score per CVE and asset
The Threat Exposure Score and Business Exposure Score are combined to produce a total priority score per CVE-and-asset pairing. This guides remediation sequencing when multiple high-priority findings compete for attention, giving your team clear, justified direction rather than an undifferentiated list.
This layered model is delivered through a custom XSOAR workflow that pulls CVE intelligence from GTI, cross-references it against your vulnerability management platform, and produces enriched incidents with affected asset lists and custom criticality scores. The workflow runs continuously, ensuring your remediation queue reflects the current threat landscape rather than a point-in-time snapshot.
Organisations struggle not with finding vulnerabilities but with knowing which ones matter. Through context, automation, and expert analysis, the Nomios VOC turns a noisy list of issues into clear, actionable risk reduction.
Jacob Dobson, Head of Security Operations
Built for modern cyber exposure management
Built on Gartner’s CTEM methodology
- We adopt the Scoping, Discovery, Prioritisation, Validation, and Mobilisation model to deliver full lifecycle cyber exposure management.
Rapid time to value
- Automation and best-practice configuration enable fast deployment of scanning, risk scoring, and reporting, typically operational within days.
Single tenant architecture
- You retain full ownership of your platform and data, giving you transparency and architectural control with no vendor lock-in.
Context-driven prioritisation
- We prioritise using GTI exploit intelligence, EPSS, KEV status, asset criticality, and business impact rather than CVSS scores alone.
Iterative and risk-led
- We focus first on your most critical processes and infrastructure, then expand coverage iteratively to ensure your highest-value assets are protected first.
Direct access to specialists
- A dedicated analyst and Service Delivery Manager guide remediation efforts and provide strategic insight without relying on slow ticket queues.
Automation and AI as standard
- Automation accelerates discovery, enrichment, risk scoring, and workflow coordination. AI enhances threat analysis and reveals emerging patterns and weaknesses.
What is included in the Nomios VOC service?
- Near real-time discovery of cloud, on-premises, SaaS, OT, and external assets using modern CMDB and scanning technologies.
- Correlation of vulnerabilities with active exploits, threat campaigns, GTI priority scores, EPSS, CISA KEV, and sector-specific intelligence.
- Continuous detection of vulnerabilities, misconfigurations, and compliance gaps across your monitored environments.
- Multi-layered scoring using GTI priority, Threat Exposure Score, Business Exposure Score, and asset criticality to guide remediation sequencing.
- EASM and IASM techniques to identify exploitable weaknesses and analyse potential attack paths to critical systems.
- Custom XSOAR workflows cross-reference CVE intelligence against your VM platform and generate enriched, prioritised incidents automatically.
- Centralised aggregation of risk data for a unified, real-time view of your exposure across all sources.
- Dashboards, KPIs, compliance-aligned reporting, and monthly reviews with your dedicated analyst and Service Delivery Manager.
Continuous Asset Discovery
Threat and Exploit Intelligence
Vulnerability Inventory and Assessment
Risk-Based Prioritisation
Exposure and Attack Path Analysis
SOAR-Powered Automation
CTEM Tool Aggregation
Service Delivery and Reporting
Supported vulnerability management platforms
The Nomios VOC integrates with leading vulnerability management tools. Our XSOAR-powered enrichment and prioritisation layer works across the following platforms, with the GTI-led scoring and automation applied consistently regardless of your chosen tooling:
Why organisations choose the Nomios Vulnerability Operations Centre
Complete visibility of your attack surface
- Gain an accurate, continuously updated view of all assets and vulnerabilities across cloud, on-premises, and external environments.
Prioritisation that focuses on real risk
- Intelligence-led scoring removes noise and highlights only the vulnerabilities that genuinely matter, before attackers exploit them.
Faster and more effective remediation
- Enriched incidents, clear guidance, and structured workflows help your teams close high-priority vulnerabilities quickly and confidently.
Internet-facing asset protection
- Elevated scoring and alerting for publicly exposed systems supports aggressive patching timelines for your highest-risk attack surface.
Predictable and scalable management
- Gain a mature vulnerability management capability without the complexity or cost of building your own function.
Stronger security posture and measurable improvement
- Track risk reduction over time and demonstrate improvement to stakeholders and auditors.
Simplified compliance
- Meet requirements for ISO 27001, NCSC CAF, NIS2, PCI DSS, Cyber Essentials Plus, and other frameworks through complete and auditable reporting.
