Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-59030
StatePUBLISHED
AssignerOX
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-09 16:17:59 UTC
Updated2026-10-07 20:10:01 UTC
DescriptionAn attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

Problem Types: CWE-276 | CWE-276 CWE-276 Incorrect Default Permissions

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Powerdns Recursor All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA PowerDNS Recursor affected 5.3.0 5.3.3 semver Not specified
CNA PowerDNS Recursor affected 5.2.0 5.2.7 semver Not specified
CNA PowerDNS Recursor affected 5.1.0 5.1.9 semver Not specified

References

ReferenceSourceLinkTags
docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-08.html [email protected] docs.powerdns.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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