47 CVEs
h2o Vulnerabilities
CVE security advisories and vulnerability history for h2o.
47
Total CVEs
Published
0
In CISA KEV
Exploited in the wild
26
Public exploits
With known exploit
7.3
Avg CVSS
2016–2026
Overview
h2o has 47 published CVE records since 2016, of which 0 are in CISA's Known Exploited Vulnerabilities catalog and 26 have a known public exploit. The average CVSS base score across scored CVEs is 7.3.
This page aggregates every publicly disclosed vulnerability (CVE) affecting h2o products, with severity breakdowns, the most-affected products, the most common weakness types, and the latest disclosures.
Severity and exploitation
How the CVSS severity of h2o's CVEs breaks down, plus how many are exploited in the wild or have public exploit code.