CVE-2026-33601

MediumCVSS 4.9/10Last modified Oct 26, 2026

Description

If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
PowerDNS	Recursor	>= 5.4.0, < 5.4.1; >= 5.3.0, < 5.3.6; >= 5.2.0, < 5.2.9

References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.htmlBroken Link, Vendor Advisory

Timeline

Published: Apr 22, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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