CVE-2011-0413: ISC Dhcp

High severity, CVSS 7.8. EPSS: 32.9% chance of exploitation in the next 30 days.

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.

Affected products

• ISC Dhcp: version 4.0 only; version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.1.0 only; …

Published 2011-01-31. Last modified 2026-06-16.