CVE-2008-3530: Freebsd

High severity, CVSS 7.1. EPSS: 4.5% chance of exploitation in the next 30 days.

sys/netinet6/icmp6.c in the kernel in FreeBSD 6.3 through 7.1, NetBSD 3.0 through 4.0, and possibly other operating systems does not properly check the proposed new MTU in an ICMPv6 Packet Too Big Message, which allows remote attackers to cause a denial of service (panic) via a crafted Packet Too Big Message.

Affected products

• Freebsd Freebsd: version 6.3 only; version 7.0 only; version 7.1 only

Published 2008-09-05. Last modified 2026-06-16.