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	Vendor Advisory Broken Link

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

27 Apr 2026, 16:58

Type	Values Removed	Values Added
First Time		Powerdns Powerdns recursor
CPE		cpe:2.3:a:powerdns:recursor:5.4.0:::::::* cpe:2.3:a:powerdns:recursor::::::::
References	~~() https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html -~~	() https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html - Vendor Advisory, Broken Link

22 Apr 2026, 19:17

Type	Values Removed	Values Added
CWE		CWE-476

22 Apr 2026, 10:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-22 10:16

Updated : 2026-04-27 16:58

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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