VulnCheck is a cyber threat intelligence platform that provides vulnerability and exploit intelligence to help organizations prioritize vulnerability remediation. The platform offers early access to vulnerability information not found in the National Vulnerability Database (NVD), including dozens of unique data fields. The platform consists of four main intelligence modules: Exploit & Vulnerability Intelligence provides early access to new vulnerability information with unique fields beyond standard CVE data. Initial Access Intelligence includes in-house developed exploit proof-of-concepts, packet captures, and Suricata signatures for defending against initial access vulnerabilities. IP Intelligence detects potentially vulnerable systems, attacker command and control infrastructure, and honeypots. Canary Intelligence uses data from globally deployed Internet sensors to reveal early signs of vulnerability exploitation in the wild. VulnCheck tracks exploitation trends and provides real-time alerting when changes occur in the vulnerability landscape. The platform publishes security advisories and maintains community resources including VulnCheck KEV, NVD++, and the VulnCheck Exploit Database (XDB). The service is accessible through a web console and API.