CVE-2022-33992: Domain Name Relay Daemon Project Domain Name Relay Daemon

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

DNRD (aka Domain Name Relay Daemon) 2.20.3 forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.

Affected products

• Domain Name Relay Daemon Project Domain Name Relay Daemon: version 2.20.3 only

Published 2022-08-15. Last modified 2026-06-17.