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Fencer Intel
low 3.7

CVE-2019-3807 json

An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from aut…

published 7y ago modified 4mo ago also EUVD-2019-13433

cvss
3.7
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation.

Patch / fix

  • pdns-recursor Debian 14, Debian 13, Debian 12 4.1.9-1

debian advisories DEBIAN-CVE-2019-3807

  • pdns-recursor openSUSE Tumbleweed 4.5.5-1.3
  • pdns-recursor Package Hub 12 SP1 4.1.10-16.1
  • pdns-recursor Package Hub 15 4.1.2-bp150.2.6.1

opensuse advisories openSUSE-SU-2024:11157-1openSUSE-SU-2019:0131-1openSUSE-SU-2019:0107-1

  • pdns-recursor Alpine 3.24, Alpine 3.23, Alpine 3.22 +14 more 4.1.9-r0

alpine advisories ALPINE-CVE-2019-3807

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-recursor Arch Linux 4.1.9-1

arch linux advisories AVG-856

Is CVE-2019-3807 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2019-3807 updated cvss 3.7

pdns-recursor: Insufficient validation of DNSSEC signature

  • 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

0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 3.7 CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N

Affected products

  • Power DNS pdns-recursor

Classification

Weakness
  • CWE-345 Insufficient Verification of Data Authenticity
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Intel 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.