CISO Tribune

Vendor comparison · 2 companies

Nucleus Security vs Rapid7

Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. Rapid7 sells the Command Platform, which runs cloud security, SIEM, application security, vulnerability management, automation and attack surface management solutions, along with managed services offerings built on these solutions. CISO Tribune files both under Vulnerability management. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Nucleus Security
  • Rapid7
Nucleus Security vs Rapid7: Products, Customers and Funding Compared
Nucleus SecurityNucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies.nucleussec.comRapid7Rapid7 sells the Command Platform, which runs cloud security, SIEM, application security, vulnerability management, automation and attack surface management solutions, along with managed services offerings built on these solutions.rapid7.com
What it sells
  • Nucleus Data Core[5]A system of record for assets, exposures, and threats.
  • Nucleus ServiceNow App connector[7]A connector that integrates with ServiceNow through the Nucleus Security for Vulnerability Response app.
  • Vulnerability Management[3][4][6]Helps customers understand risk across hybrid environments and prioritize remediation.
  • Threat Command[7]Monitors the clear, deep, and dark web to identify risks before they become attacks.
  • Metasploit[9][10][11]Validates vulnerabilities and enables phishing and broader social engineering.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[12]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[14]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetRapid7 offers vulnerability management for hybrid environments and cloud security for multi-cloud environments. Rapid7 provides clear, deep and dark web monitoring for threats to an organization, its employees and its customers. Rapid7 states that it has customers around the world.
Last verified
November 8, 2026November 6, 2026

Where they overlap

  • Vulnerability management is the primary category of both Nucleus Security and Rapid7.

Where they differ, field by field

  • Nucleus Security is also filed under Exposure prioritisation and CTEM and Threat intelligence. Rapid7 is also filed under External attack surface management, SIEM and MDR and managed SOC.
  • Nucleus Security lists Nucleus Data Core and Nucleus ServiceNow App connector. Rapid7 lists Vulnerability Management, Threat Command and Metasploit.

How they differ

CISO Tribune files both Nucleus Security and Rapid7 under Vulnerability management as the primary category. Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. Nucleus Security also sells a connector that integrates with ServiceNow through the Nucleus Security for Vulnerability Response app.

Rapid7 sells the Command Platform, which runs cloud security, SIEM, application security, vulnerability management, automation and attack surface management solutions, along with managed services built on them. Its Vulnerability Management product uses agent-based and network scanning across hybrid environments. Rapid7 also sells Threat Command, which monitors the clear, deep, and dark web, and Metasploit, which validates vulnerabilities. Its managed offerings include Managed Vulnerability Management, Managed Threat Complete and Managed Detection & Response.

The two overlap in vulnerability management and prioritization, and both touch threat intelligence. Nucleus Security centers on unifying data from a customer's existing scanners and other tools into one hub, while Rapid7 lists its own scanning, SIEM, MDR and penetration testing services. For customers, Nucleus Security names TRUESEC, a European MSSP, and Rapid7 states that it has customers around the world. Rapid7 is a publicly traded company. Nucleus experts researched every new KEV addition between October 2025 and March 2026 and captured their observations in a report.

What it sells: Nucleus Security

What Nucleus Data Core does[5]
The Nucleus Data Core is a system of record for assets, exposures, and threats. The Nucleus Data Core transforms fragmented data into unified, live exposure context. Nucleus says every AI decision and action is grounded in the Nucleus Data Core.
What Nucleus ServiceNow App connector does[7]
The Nucleus ServiceNow App connector integrates directly with ServiceNow through the Nucleus Security for Vulnerability Response app. The app runs directly on a customer's ServiceNow environment and enables integration with Vulnerability Response. The app has several different integrations, including assets and vulnerable items.

What it sells: Rapid7

What Vulnerability Management does[3][4][6]
Vulnerability management uses agent-based and network scanning across hybrid environments. Remediation is prioritized according to targets that attract attackers the most.
What Threat Command does[7]
Threat Command takes on takedown management for organizations. A dynamic asset mapping framework tracks a customer's evolving digital footprint.

Questions about Nucleus Security and Rapid7

What do Nucleus Security and Rapid7 sell?
Nucleus Security sells Nucleus Data Core and Nucleus ServiceNow App connector. Rapid7 sells Vulnerability Management, Threat Command and Metasploit.
Are Nucleus Security and Rapid7 in the same category?
Yes. Vulnerability management is the primary category of both on CISO Tribune.
Who are Nucleus Security and Rapid7 sold to?
Rapid7 offers vulnerability management for hybrid environments and cloud security for multi-cloud environments.

About Nucleus Security

Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. Nucleus unifies exposure data, tracks what is being exploited in the wild, and uses AI to build the program. Nucleus says AI is accelerating how fast new vulnerabilities are found and exploited, and that traditional programs cannot keep pace.[1][3][4]

Nucleus Helix drives specialized AI models and agents that build and maintain the program and close exposure gaps. Nucleus Helix runs on the Nucleus Data Core. The Nucleus Data Core is a system of record for assets, exposures, and threats that transforms fragmented data into unified, live exposure context.[5]

Nucleus ingests, correlates, and normalizes data from all of a customer's tools into one hub for unified risk visibility and reporting. Nucleus centralizes exposure management and unifies data from asset discovery, vulnerability scanners, exposure validation, and threat intelligence. Nucleus lets customers customize risk scoring and prioritize risk with asset context and business impact. Nucleus Insights agentic intelligence feed validates exploit and malware evidence. Nucleus offers application security capabilities with unified visibility, exposure prioritization, and automated ownership assignment. Nucleus addresses dynamic cloud environments, including findings sprawl and ephemeral assets.[1][2][3][4]

Nucleus remediation workflows prioritize, ticket, assign owners, and track SLA performance. Nucleus operationalizes ownership metadata in the Nucleus Dynamic Automation Framework to adapt ownership assignment as the business evolves. Nucleus tracks the status of tickets with bi-directional integration and updates when new data is ingested or a status changes. Nucleus lets customers set time limits and document approvals for risk exceptions. Nucleus lets customers define SLAs and monitor ticket status and resolutions over time.[6]

The Nucleus ServiceNow App connector integrates directly with ServiceNow through the Nucleus Security for Vulnerability Response app. The Nucleus Security for Vulnerability Response app runs directly on a customer's ServiceNow environment and enables integration with Vulnerability Response. The Nucleus Security for Vulnerability Response ServiceNow app has several different integrations, including assets and vulnerable items. The app is intended to be installed and configured by a Nucleus Security for Vulnerability Response specialist alongside a ServiceNow administrator with experience with ServiceNow SecOps Vulnerability Response.[7]

CMMC 2.0 is the Department of War (formerly Department of Defense) framework for protecting Federal Contract Information (FCI) and Controlled Unclassified Information (CUI) across the Defense Industrial Base (DIB). Nucleus operationalizes and centralizes evidence, monitors weaknesses, prioritizes risk-based fixes, and proves outcomes across teams and systems for core security controls. Nucleus automatically turns critical findings into tracked incidents with owners, actions, and documented resolution. Nucleus maps findings to NIST 800-171 controls and generates and manages POA&Ms. Nucleus offers POAM automation for the POAM process from vulnerability identification to reporting, for federal agencies and contractors.[8][9]

Nucleus offers two license tiers for unified vulnerability management. Nucleus pricing is affected by the number and type of assets in a customer's environment. Nucleus defines an asset as anything that can have a finding, including physical devices, cloud services, code repositories, and applications. TRUESEC, a European MSSP, unified customer data, automated remediation workflows, and scaled its services in partnership with Nucleus. Nucleus experts researched every new KEV addition between October 2025 and March 2026 and captured their observations in a report. Nucleus Security has published new CVE research in a company white paper.[1][2][4][5][6][10][11]

Nucleus Security on the record

Sources

Nucleus Security full record

  1. [1]nucleussec.comNucleus Security · nucleussec.com · undated page, accessed November 8, 2026 · Tier A
  2. [2]PlatformNucleus Security · nucleussec.com · undated page, accessed November 8, 2026 · Tier A
  3. [3]Nucleus Vulnerability & Exposure Management SolutionsNucleus Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Nucleus Security | Vulnerability and Exposure ManagementNucleus Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Nucleus Vulnerability Management PlatformNucleus Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Vulnerability Remediation with NucleusNucleus Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]ServiceNow App for Vulnerability ResponseNucleus Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]Operationalize CMMC 2.0 Compliance with NucleusNucleus Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Get Started Nucleus POAMNucleus Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Nucleus PricingNucleus Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Risk-based Vulnerability Management | Nucleus SecurityNucleus Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]Nucleus Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

Rapid7 full record

  1. [1]rapid7.comRapid7 · rapid7.com · undated page, accessed November 6, 2026 · Tier A
  2. [2]Business supportRapid7 · careers.rapid7.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]PHP CVE-2026-109618 and CVE-2026-109619: Rapid7 StatementRapid7 · undated page, accessed November 10, 2026 · Tier A
  4. [4]Rapid7 Managed Cybersecurity: Outpace AttackersRapid7 · undated page, accessed November 10, 2026 · Tier A
  5. [5]Rapid7 Product PricingRapid7 · undated page, accessed November 10, 2026 · Tier A
  6. [6]Surface Command | Attack Surface Management | Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  7. [7]Threat Command: Digital Risk Protection - Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  8. [8]Rapid7 MDR Pricing | Managed Threat CompleteRapid7 · undated page, accessed November 10, 2026 · Tier A
  9. [9]Penetration Testing Services | Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  10. [10]Penetration Testing Tools and Services - Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  11. [11]Metasploit Editions: Network Pen Testing Tool - Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  12. [12]Coordinated Vulnerability Disclosure (CVD) Policy - Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  13. [13]Compliance - Rapid7Rapid7 · undated page, accessed November 10, 2026 · Tier A
  14. [14]Rapid7 Security Services Reviews & Provider DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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