VulnCheck

About VulnCheck

VulnCheck sells a cyber threat intelligence platform built around exploit and vulnerability data. It helps security teams work out which flaws need fixing first and which can wait, based on what attackers are actually doing. The company says the time between a vulnerability becoming known and being weaponised has shrunk sharply, and it positions its data as a way to act before attacks land. The platform draws on several sources. VulnCheck produces its own proof of concept exploits, network captures and detection signatures for flaws used in initial access. It also runs sensors placed across the internet that show early signs of exploitation, and it can tell a customer which hosts on the internet are vulnerable to a given CVE. It sells to security teams and to government partners through a dedicated government offering.

Products

• Exploit & Vulnerability IntelligenceVulnerability data with extra fields and earlier access than the NVD provides.
• Initial Access IntelligenceVulnCheck's own exploits, packet captures and detection signatures for flaws used to gain a foothold.
• Canary IntelligenceSignals from internet sensors that reveal the first signs of a vulnerability being exploited.
• Target IntelligenceGiven a CVE, it lists every vulnerable host reachable on the internet.
• VulnCheck for GovernmentA version with features and data reserved for government partners.

Ownership and deals

1. February 2026Raised $25m in a Series B roundInvestor Sorenson CapitalReport on the VulnCheck funding round of February 2026 (opens in a new tab)
2. March 2025Raised $12m in a Series A roundInvestor Ten Eleven VenturesReport on the VulnCheck funding round of March 2025 (opens in a new tab)
3. April 2024Raised $4.8m in a seed roundInvestor Sorenson CapitalReport on the VulnCheck funding round of April 2024 (opens in a new tab)
4. February 2023Raised $3.2m in a seed roundInvestor Sorenson VenturesReport on the VulnCheck funding round of February 2023 (opens in a new tab)

Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.

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