VULNERABILITY INTELLIGENCE

CVE-2026-33599

CVSS score3.1 LOW
EPSS probability0.28%
CISA KEVNot currently listed
Published2026-04-22
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-125

Primary references