CVE-2026-33599HIGH 8.1EPSS p19.8%

CVE-2026-33599CVE-2026-33599

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.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS0.28% probability of exploitation · percentile 19.8% · 2026-06-19T12:03:05Z
Published2026-04-22
Last modified2026-04-24

Underlying weaknesses· 1

CWE-125

References

  1. https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html

1

TypeTargetConfidenceTier
WeaknessOut-of-bounds Readcwe-1250%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-33608
CVE
CVE-2026-33602
CVE
CVE-2026-33598
CVE
CVE-2026-32992
CVE
CVE-2026-33615
CVE
CVE-2026-42000
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.