Input validation error in PowerDNS Recursor - CVE-2025-59030
Published: December 8, 2025
Vulnerability identifier: #VU119298
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-59030
CWE-ID: CWE-20
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 perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of incoming notifies over TCP. A remote attacker can send specially crafted requests to the DNS server and perform a denial of service (DoS) attack.
How to mitigate CVE-2025-59030
Install updates from vendor's website.