Description

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.

Severity (CVSS)

Base score5.9
SeverityMedium
VersionCVSS 3.1
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Provided byCNA

Weaknesses

  • — Improper Input Validation
  • CWE-20 — CWE-20 Improper Input Validation

Affected products

VendorProductVersions
PowerDNSRecursor5.2.0 to <5.2.11; 5.3.0 to <5.3.8; 5.4.0 to <5.4.3

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 26 Jun 2026 07:05 UTC.