CVE-2012-5363: Freebsd

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

The IPv6 implementation in FreeBSD and NetBSD (unknown versions, year 2012 and earlier) allows remote attackers to cause a denial of service via a flood of ICMPv6 Neighbor Solicitation messages, a different vulnerability than CVE-2011-2393.

Affected products

• Freebsd Freebsd: before 9.2 (fixed in 9.2)
• Netbsd Netbsd: before 6.0.2 (fixed in 6.0.2)

Published 2020-02-20. Last modified 2026-06-16.