An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.
History

Tue, 22 Jul 2025 10:15:00 +0000

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

Mon, 21 Jul 2025 13:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 21 Jul 2025 13:00:00 +0000

Type Values Removed Values Added
Description An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.
Title A Recursor configured to send out ECS enabled queries can be sensitive to spoofing attempts
Weaknesses CWE-345
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published: 2025-07-21T12:49:31.532Z

Updated: 2025-07-21T13:05:35.258Z

Reserved: 2025-03-18T08:39:46.884Z

Link: CVE-2025-30192

cve-icon Vulnrichment

Updated: 2025-07-21T13:05:27.588Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-21T13:15:26.740

Modified: 2025-07-22T13:06:07.260

Link: CVE-2025-30192

cve-icon Redhat

No data.