CVE-2017-7508: Openvpn

High severity, CVSS 7.5. EPSS: 4.8% chance of exploitation in the next 30 days.

OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet.

Affected products

• Openvpn Openvpn: up to and including 2.3.16; version 2.4.0 only; version 2.4.1 only; version 2.4.2 only

Published 2017-06-27. Last modified 2026-06-17.