CVE-2026-33600

MEDIUM

Powerdns Recursor < 5.4.1 - Denial of Service

Title source: rule
STIX 2.1

Description

An RPZ sent by a malicious authoritative server can result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

References (1)

Scores

CVSS v3 4.4
EPSS 0.0002
EPSS Percentile 6.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (5)
powerdns/recursor 5.4.0
PowerDNS/Recursor 5.2.0 - 5.2.9
powerdns/recursor 5.2.0 - 5.2.9
PowerDNS/Recursor 5.3.0 - 5.3.6
PowerDNS/Recursor 5.4.0 - 5.4.1
Published Apr 22, 2026
Tracked Since Apr 22, 2026