CVE-2016-6173: Nlnetlabs Nsd

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

NSD before 4.1.11 allows remote DNS master servers to cause a denial of service (/tmp disk consumption and slave server crash) via a zone transfer with unlimited data.

Affected products

• Nlnetlabs Nsd: up to and including 4.1.10

Published 2017-02-09. Last modified 2026-06-17.