CVE-2026-33593

HIGH

Denial of service via crafted DNSCrypt query

Title source: cna
STIX 2.1

Description

A client can trigger a divide by zero error leading to crash by sending a crafted DNSCrypt query.

References (1)

Scores

CVSS v3 7.5
EPSS 0.0003
EPSS Percentile 7.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-369
Status published
Products (3)
PowerDNS/DNSdist 1.9.0 - 1.9.13
powerdns/dnsdist 1.9.0 - 1.9.13
PowerDNS/DNSdist 2.0.0 - 2.0.4
Published Apr 22, 2026
Tracked Since Apr 22, 2026