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Fencer Vulns
high 7.5

CVE-2022-27227 json

In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before…

published 2022-03-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-31736

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

In PowerDNS Authoritative Server before 4.4.3, 4.5.x before 4.5.4, and 4.6.x before 4.6.1 and PowerDNS Recursor before 4.4.8, 4.5.x before 4.5.8, and 4.6.x before 4.6.1, insufficient validation of an IXFR end condition causes incomplete zone transfers to be handled as successful transfers.

Patch / fix

  • powerdns authoritative_server 4.4.3, 4.5.4, 4.6.1
  • powerdns recursor 4.4.8, 4.5.8, 4.6.1
  • pdns Debian 14, Debian 13, Debian 12 4.6.1-1
  • pdns-recursor Debian 14, Debian 13, Debian 12 4.6.1-1

debian advisories DEBIAN-CVE-2022-27227

  • pdns Ubuntu Pro 18.04 LTS 4.1.1-1ubuntu0.1~esm1
  • pdns Ubuntu Pro 20.04 LTS 4.2.1-1ubuntu0.1~esm1
  • pdns Ubuntu Pro 22.04 LTS 4.5.3-1ubuntu0.1~esm1
  • pdns-recursor Ubuntu Pro 18.04 LTS 4.1.1-2ubuntu0.1~esm1
  • pdns-recursor Ubuntu Pro 20.04 LTS 4.2.1-1ubuntu0.1~esm1
  • pdns-recursor Ubuntu Pro 22.04 LTS 4.6.0-1ubuntu1+esm1

ubuntu advisories UBUNTU-CVE-2022-27227

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • pdns openSUSE Tumbleweed 4.6.1-1.1
  • pdns-recursor openSUSE Tumbleweed 4.6.1-1.1
  • pdns-recursor Package Hub 15 SP3, openSUSE Leap 15.3 4.3.5-bp153.2.3.1

opensuse advisories openSUSE-SU-2024:11954-1openSUSE-SU-2024:11955-1openSUSE-SU-2022:0105-1

  • pdns Alpine 3.15 4.5.4-r0
  • pdns Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 4.6.1-r0
  • pdns-recursor Alpine 3.15 4.5.8-r0
  • pdns-recursor Alpine 3.24, Alpine 3.23, Alpine 3.22 +6 more 4.6.1-r0

alpine advisories ALPINE-CVE-2022-27227

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • powerdns Arch Linux 4.6.1-1
  • powerdns-recursor Arch Linux 4.6.1-1

arch linux advisories AVG-2655AVG-2656

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-27227 updated cvss 7.5

pdns,pdns-recursor: Incomplete zone transfers handled as successful

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.18% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.