CVE-2026-33261

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

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, 21:10

Type	Values Removed	Values Added
Summary		(es) Una transición de zona de NSEC a NSEC3 podría desencadenar una inconsistencia interna y causar una denegación de servicio.

Information

Published : 2026-04-22 10:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-33261

Mitre link : CVE-2026-33261

CVE.ORG link : CVE-2026-33261

JSON object : View

Products Affected

powerdns

recursor

CWE

CWE-353

Missing Support for Integrity Check

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