CVE-2022-33993: Domain Name Relay Daemon Project Domain Name Relay Daemon

Medium severity, CVSS 5.3. EPSS: 0.9% chance of exploitation in the next 30 days.

Misinterpretation of special domain name characters in DNRD (aka Domain Name Relay Daemon) 2.20.3 leads to cache poisoning because domain names and their associated IP addresses are cached in their misinterpreted form.

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.