Vulnerability · Published Dec 9, 2025 · Assigned by OX
CVE-2025-59030Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor
High 7.5
In plain English
A high-severity incorrect default permissions in Recursor from PowerDNS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 51.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.22 | pdns-recursor | 5.2.6-r0 | ALPINE-CVE-2025-59030 |
| Alpine:v3.23 | pdns-recursor | 5.3.1-r1 | ALPINE-CVE-2025-59030 |
| Alpine:v3.24 | pdns-recursor | 5.3.1-r1 | ALPINE-CVE-2025-59030 |
| Debian:12 | pdns-recursor | no fix listed | DEBIAN-CVE-2025-59030 |
| Debian:13 | pdns-recursor | 5.2.7-0+deb13u1 | DSA-6077-1 |
| Debian:13 | pdns-recursor | 5.2.7-0+deb13u1 | DEBIAN-CVE-2025-59030 |
| Debian:14 | pdns-recursor | 5.3.3-1 | DEBIAN-CVE-2025-59030 |
| Ubuntu:24.04:LTS | pdns-recursor | no fix listed | UBUNTU-CVE-2025-59030 |
| Ubuntu:25.10 | pdns-recursor | no fix listed | UBUNTU-CVE-2025-59030 |
| Ubuntu:26.04:LTS | pdns-recursor | no fix listed | UBUNTU-CVE-2025-59030 |
| Ubuntu:26.10 | pdns-recursor | no fix listed | UBUNTU-CVE-2025-59030 |
Affected products (as reported)
Weakness: CWE-276 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H