CVE-2026-33610

MEDIUM

Possible file descriptor exhaustion in forward-dnsupdate

Title source: cna
STIX 2.1

Description

A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.

References (1)

Scores

CVSS v3 5.9
EPSS 0.0002
EPSS Percentile 5.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (3)
PowerDNS/Authoritative 4.9.0 - 4.9.14
powerdns/authoritative 4.9.0 - 4.9.14
PowerDNS/Authoritative 5.0.0 - 5.0.4
Published Apr 22, 2026
Tracked Since Apr 22, 2026