CVE-2012-3570: ISC Dhcp

Medium severity, CVSS 5.7. EPSS: 2.6% chance of exploitation in the next 30 days.

Buffer overflow in ISC DHCP 4.2.x before 4.2.4-P1, when DHCPv6 mode is enabled, allows remote attackers to cause a denial of service (segmentation fault and daemon exit) via a crafted client identifier parameter.

Affected products

• ISC Dhcp: version 4.2.0 only; version 4.2.1 only; version 4.2.2 only; version 4.2.3 only; version 4.2.4 only

Published 2012-07-25. Last modified 2026-06-16.