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CVE-2025-30192

A Recursor configured to send out ECS enabled queries can be sensitive to spoofing attempts

Published: Jul 21, 2025Updated: Jul 22, 2025 Sources: CVE List NVD BDUCWE-345
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.2%
Top 86.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-345

Affected Products

RecursorPowerDNS
On-premNetwork Device
Networking Infrastructure / dns-dhcp-ntp
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
PowerDNS RecursorPowerDNS.COM BV
On-prem
Networking Infrastructure / dns-dhcp-ntp
powerdnsoss-projectDKNetworking Infrastructureaka powerdns recursor, powerdns authoritative, dnsdist
ооо «ред софт»commercialRUOperating Systemsaka red soft
powerdns.com bvcommercialNLNetworking Infrastructureaka powerdns

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html
docs.powerdns.com
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html
docs.powerdns.com
https://redos.red-soft.ru/support/secure/
redos.red-soft.ru

Timeline

Published
Jul 21, 2025
Last Updated
Jul 22, 2025

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