CVE-2014-2155: Cisco Cns Network Registrar

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

The DHCPv6 server module in Cisco CNS Network Registrar 7.1 allows remote attackers to cause a denial of service (daemon reload) via a malformed DHCPv6 packet, aka Bug ID CSCuo07437.

Affected products

• Cisco Cns Network Registrar: version 7.1 only

Published 2014-04-19. Last modified 2026-06-17.