CVE-2023-22617: Powerdns Recursor

High severity, CVSS 7.5. EPSS: 7.3% chance of exploitation in the next 30 days.

A remote attacker might be able to cause infinite recursion in PowerDNS Recursor 4.8.0 via a DNS query that retrieves DS records for a misconfigured domain, because QName minimization is used in QM fallback mode. This is fixed in 4.8.1.

Affected products

• Powerdns Recursor: version 4.8.0 only

Published 2023-01-21. Last modified 2026-06-17.