CVE-2026-33593 HIGH

CVE-2026-33593: Denial of service via crafted DNSCrypt query

Vendor Powerdns
Product DNSdist
Published April 22, 2026
Last update April 22, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

April 22, 2026 CVE published
April 22, 2026 Record updated