CVE-2026-33600

Null pointer dereference in RPZ transfer

State: Published
Severity: 4.4 Medium
Published: Apr 22, 2026
Updated: Apr 22, 2026
Reserved: Mar 23, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	4.4 Medium	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H	OX

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
RecursorPowerDNS	5.4.0 to before 5.4.1Affected 5.3.0 to before 5.3.6Affected 5.2.0 to before 5.2.9Affected

References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html

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