CVE-2025-59023: Powerdns Recursor

High severity, CVSS 8.2. EPSS: 0.3% chance of exploitation in the next 30 days.

Crafted delegations or IP fragments can poison cached delegations in Recursor.

Affected products

• Powerdns Recursor: from 5.1.0, before 5.1.8 (fixed in 5.1.8); from 5.2.0, before 5.2.6 (fixed in 5.2.6); from 5.3.0, before 5.3.1 (fixed in 5.3.1)

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