CVE-2007-1365: OpenBSD

High severity, CVSS 10.0. EPSS: 17.9% chance of exploitation in the next 30 days.

Buffer overflow in kern/uipc_mbuf2.c in OpenBSD 3.9 and 4.0 allows remote attackers to execute arbitrary code via fragmented IPv6 packets due to "incorrect mbuf handling for ICMP6 packets." NOTE: this was originally reported as a denial of service.

Affected products

• OpenBSD OpenBSD: version 3.9 only; version 4.0 only

Published 2007-03-10. Last modified 2026-06-16.