How severe is CVE-2018-14663?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 5.9 out of 10.

What type of vulnerability is CVE-2018-14663?

This is classified as CWE-20, which is a common weakness in software security.

CVE-2018-14663 - MEDIUM Severity | CVSS 5.9

Vulnerability Description

An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend.

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