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CVE-2025-30192

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CVE-2025-30192

Published: Jul 21, 2025

Modified: Jul 21, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

PowerDNS

Recursor

unaffected
5.0.12
unaffected
5.1.6
unaffected
5.2.4

Weaknesses (CWE)

CWE-345

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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