Insufficient verification of data authenticity in PowerDNS Recursor - CVE-2025-59024
Published: October 22, 2025
Vulnerability identifier: #VU117537
CSH Severity: Medium
CVSS v4.0: 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-2025-59024
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PowerDNS.COM B.V.
Affected software:
PowerDNS Recursor
PowerDNS Recursor
Detailed vulnerability 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 use an UDP IP fragments attack to poison DNS cache of the server.
How to mitigate CVE-2025-59024
Install updates from vendor's website.