CVE-2007-0343: OpenBSD

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

OpenBSD before 20070116 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via certain IPv6 ICMP (aka ICMP6) echo request packets.

Affected products

• OpenBSD OpenBSD: up to and including 4.0

Published 2007-01-18. Last modified 2026-06-16.