CVE-2026-33601

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.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html	Broken Link Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:powerdns:recursor::::::::
	cpe:2.3:a:powerdns:recursor::::::::
	cpe:2.3:a:powerdns:recursor:5.4.0:::::::*

History

26 Oct 2026, 00:10

Type	Values Removed	Values Added
Summary		(es) Si utiliza la función zoneToCache con un servidor autoritativo malicioso, un atacante puede enviar una zona que resulta en una desreferencia de puntero nulo, causada por una comprobación de coherencia faltante y que conduce a una denegación de servicio.

Information

Published : 2026-04-22 10:16

Updated : 2026-10-26 00:10

NVD link : CVE-2026-33601

Mitre link : CVE-2026-33601

CVE.ORG link : CVE-2026-33601

JSON object : View

Products Affected

powerdns

recursor

CWE

CWE-476

NULL Pointer Dereference

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