CVE-2022-33992

high

Description

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.

References

Advisories

https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner

https://www.openwall.com/lists/oss-security/2022/08/14/1

http://dnrd.sourceforge.net/

Details

Source: Mitre, NVD

Published: 2022-08-15

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N