CVE-2026-40208

LOW

PowerDNS DNSdist - Denial of Service via DoH3 Queries

Title source: rule
STIX 2.1

Description

An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame.

References (1)

Core 1

Scores

CVSS v3 3.7
EPSS 0.0021
EPSS Percentile 10.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-705
Status published
Products (2)
PowerDNS/DNSdist 1.9.0 - 1.9.15
PowerDNS/DNSdist 2.0.0 - 2.0.7
Published Jun 25, 2026
Tracked Since Jun 25, 2026