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.
Published: 2026-04-22
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Apply Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6233-1 pdns security update
History

Fri, 24 Apr 2026 19:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*

Wed, 22 Apr 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Powerdns
Powerdns authoritative
Vendors & Products Powerdns
Powerdns authoritative

Wed, 22 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title Possible file descriptor exhaustion in forward-dnsupdate
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Powerdns Authoritative
cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published:

Updated: 2026-04-22T14:26:32.724Z

Reserved: 2026-03-23T12:58:38.267Z

Link: CVE-2026-33610

cve-icon Vulnrichment

Updated: 2026-04-22T14:25:17.230Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-22T14:16:54.887

Modified: 2026-04-24T18:53:08.563

Link: CVE-2026-33610

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-27T18:45:11Z

Weaknesses