#VU117536 Insufficient verification of data authenticity in PowerDNS Recursor - CVE-2025-59023

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Main Vulnerability Database Vulnerabilities #VU117536

#VU117536 Insufficient verification of data authenticity in PowerDNS Recursor - CVE-2025-59023

Published: October 22, 2025


Vulnerability identifier: #VU117536
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-59023
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
PowerDNS Recursor
Software vendor:
PowerDNS.COM B.V.

Description

The vulnerability allows a remote attacker to poison DNS cache. 

The vulnerability exists due to software does not apply strict enough validation of received delegation information. A remote attacker can spoof delegation requests and poison DNS cache of the server. 


Remediation

Install updates from vendor's website.

External links