CVE-2026-33259

Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

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

No history.

Information

Published : 2026-04-22 10:16

Updated : 2026-06-17 10:37

NVD link : CVE-2026-33259

Mitre link : CVE-2026-33259

CVE.ORG link : CVE-2026-33259

JSON object : View

Products Affected

powerdns

recursor

CWE

CWE-416

Use After Free

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