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CVE-2026-33261

nvd nist
Published: Apr 22, 2026Modified: Jun 17, 2026

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5.9
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.2 / Impact: 3.6
Source: security@open-xchange.com (Secondary)

Description

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

Affected (3)

Products: Powerdns: Recursor
Powerdns
1 product
Recursor
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Powerdns
Recursor
From 5.2.0 to 5.2.9
Recursor
From 5.3.0 to 5.3.6
Recursor
Version 5.4.0

Related CWEs

CWE-353
Missing Support for Integrity Check
The product uses a transmission protocol that does not include a mechanism for verifying the integrity of the data during transmission, such as a checksum.

References (1)

Source: security@open-xchange.com
Broken LinkVendor Advisory

Timeline

No history available yet.