VulnCheck
VulnCheck sells exploit intelligence that tells security and vulnerability teams which flaws are being exploited and how, so they can prioritize patching and detection.
About VulnCheck
VulnCheck collects and publishes machine-readable data on when vulnerabilities become exploitable and how attackers use them.
Its products cover early vulnerability data that may not yet be in the NVD, initial access intelligence with exploit proofs of concept, packet captures and Suricata signatures, and a sensor network that watches the internet for early exploitation.
It can also identify internet hosts exposed to a given CVE. Free community resources include VulnCheck KEV and NVD++. Customers include enterprises and government agencies. The company raised a $25M Series B in February 2026, bringing its total to $45M.
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