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.
History

Mon, 27 Apr 2026 17:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*
cpe:2.3:a:powerdns:recursor:5.4.0:*:*:*:*:*:*:*

Wed, 22 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 11:45:00 +0000

Type Values Removed Values Added
First Time appeared Powerdns
Powerdns recursor
Weaknesses CWE-476
Vendors & Products Powerdns
Powerdns recursor

Wed, 22 Apr 2026 10:15:00 +0000

Type Values Removed Values Added
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.
Title Insufficient validation of zonemd record
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published: 2026-04-22T09:37:03.448Z

Updated: 2026-04-22T18:10:44.494Z

Reserved: 2026-03-23T12:57:56.815Z

Link: CVE-2026-33601

cve-icon Vulnrichment

Updated: 2026-04-22T18:00:19.125Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-22T10:16:52.223

Modified: 2026-04-27T16:58:57.087

Link: CVE-2026-33601

cve-icon Redhat

No data.