Nucleus Security provides a vulnerability and exposure management platform that aggregates, prioritizes, and automates remediation of security vulnerabilities across an organization's infrastructure. The platform unifies vulnerability data from over 160 integrated security tools and scanners into a centralized system, enabling security teams to operationalize findings from multiple sources.

The company's core capabilities include vulnerability aggregation, risk-based prioritization using asset context and threat intelligence, automated remediation workflows, and asset management. The platform incorporates the Nucleus Vulnerability Intelligence Platform, which enriches vulnerability findings with real-world threat intelligence through their AI-powered Nucleus Insights Intelligence Feed. This intelligence feed provides expert-validated threat and vulnerability data to help organizations focus on the most critical exposures.

Nucleus Security serves both public and private sector organizations, with specific solutions designed for federal government agencies and state, local, and education (SLED) entities. The platform supports compliance frameworks and automates Plan of Action and Milestones (POA&M) processes required for government compliance. Use cases span exposure management, risk-based vulnerability management, application security, and cloud vulnerability management across hybrid cloud environments.

The platform includes an MCP Server feature that allows users to interact with vulnerability data using natural language and AI tools. Nucleus Security has been recognized as a Challenger in the 2025 Gartner Magic Quadrant for Exposure Assessment Platforms. The company operates a partner program that includes MSSPs and is available through various industry marketplaces.