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CVE-2026-33601

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CVE-2026-33601

Published: Apr 22, 2026

Modified: Apr 22, 2026

PUBLISHED

CVSS v3.1

4.4

MEDIUM

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.

VendorProductVersions

PowerDNS

Recursor

affected
5.4.0 - < 5.4.1
affected
5.3.0 - < 5.3.6
affected
5.2.0 - < 5.2.9

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

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