Vulnerability in Powerdns Recursor

CVE-2026-33612

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L.

Affected products

Powerdns Recursor — versions 5.2.0, 5.3.0, 5.4.0

Weakness classification (CWE)

CWE-349

References

security@open-xchange.com

Frequently asked questions

What is CVE-2026-33612?: CVE-2026-33612 is a high-severity vulnerability in Powerdns Recursor, classified under CWE-349. CVSS score: 7.5/10. Published 2026-06-25.
How severe is CVE-2026-33612?: High severity. CVSS v3 base score is 7.5 out of 10.