VULNERABILITY INTELLIGENCE
CVE-2011-4868
CVSS score6.1 MEDIUM
EPSS probability3.41%
CISA KEVNot currently listed
Published2012-01-15
Last modified2026-06-16
CVSS vectorAV:A/AC:L/Au:N/C:N/I:N/A:C
Description
The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.