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CVE-2026-33599

8.1 high SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 8.1 · powerdnsNVD modified 2026-10-26 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*

References 1