PowerDNS Recursor EUVD-2026-24731

| CVE-2026-33600 MEDIUM
NULL Pointer Dereference (CWE-476)
2026-04-22 OX
Denial Of Service Null Pointer Dereference
4.4
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Apr 22, 2026 - 13:09 vuln.today
Patch available
Apr 22, 2026 - 11:16 EUVD

DescriptionNVD

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.

AnalysisAI

Denial of service in PowerDNS Recursor occurs when processing a malicious Response Policy Zone (RPZ) from an authoritative server, triggering a null pointer dereference due to missing validation logic. Versions 5.2.0-5.2.8, 5.3.0-5.3.5, and 5.4.0 are affected. …

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EUVD-2026-24731 vulnerability details – vuln.today
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