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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2025-30192

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

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Status
Published
Published
Updated
Assigning organization
OX

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

PowerDNS Recursor

Default version status: affected

  • 5.0.12unaffected
  • 5.1.6unaffected
  • 5.2.4unaffected

References