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CVE-2026-33599

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

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8.1
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability: 2.8 / Impact: 5.2
Source: NVD

Description

A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade (Lua) option to newServer or auto_upgrade (YAML) settings. DDR upgrade is not enabled by default.

Affected (2)

Products: Powerdns: Dnsdist
1 product
Dnsdist
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Powerdns
From 1.9.0 to 1.9.13
From 2.0.0 to 2.0.4

References (1)

Timeline

No history available yet.