VULNERABILITY INTELLIGENCE

CVE-2026-33254

CVSS score7.5 HIGH

EPSS probability0.37%

CISA KEVNot currently listed

Published2026-04-22

Last modified2026-10-26

Description

An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default.