CVE-2018-0608: Dena h2o

Critical severity, CVSS 9.8. EPSS: 3.8% chance of exploitation in the next 30 days.

Buffer overflow in H2O version 2.2.4 and earlier allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via unspecified vectors.

Affected products

• Dena h2o: up to and including 2.2.4

Published 2018-06-26. Last modified 2026-06-17.