BIND Recursor Cached Delegation Poisoning via Crafted Delegations/IP Fragments
CVE-2025-59023 Published on February 9, 2026
Crafted delegations or IP fragments can poison cached delegations in Recursor
Crafted delegations or IP fragments can poison cached delegations in Recursor.
Vulnerability Analysis
CVE-2025-59023 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and a small impact on availability.
Products Associated with CVE-2025-59023
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Affected Versions
PowerDNS Recursor:- Version 5.3.0 and below 5.3.1 is affected.
- Version 5.2.0 and below 5.2.6 is affected.
- Version 5.1.0 and below 5.1.8 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.