PowerDNS Recursor CVE-2026-33262

| EUVD-2026-24729 MEDIUM
NULL Pointer Dereference (CWE-476)
2026-04-22 [email protected] GHSA-ghrj-5797-7659
Denial Of Service Null Pointer Dereference
5.9
CVSS 3.1
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CVSS VectorNVD

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

Lifecycle Timeline

2
Analysis Generated
Apr 22, 2026 - 13:10 vuln.today
Patch available
Apr 22, 2026 - 11:16 EUVD

DescriptionNVD

An attacker can send replies that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service. Cookies are disabled by default.

AnalysisAI

Null pointer dereference in PowerDNS Recursor allows remote attackers to trigger a denial of service by sending crafted DNS replies that bypass a missing consistency check. The vulnerability affects Recursor versions 5.2.0 through 5.2.8, 5.3.0 through 5.3.5, and 5.4.0, with CVSS 5.9 reflecting high availability impact but requiring special network conditions (AC:H). …

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CVE-2026-33262 vulnerability details – vuln.today
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