What is CVE-2019-3807?

CVE-2019-3807 is a low-severity vulnerability in Power DNS Pdns-Recursor, classified under Insufficient Verification of Data Authenticity. CVSS score: 3.7/10. Published 2019-01-29.

How severe is CVE-2019-3807?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Power DNS Pdns-Recursor

CVE-2019-3807

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.

Published 2019-01-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (26.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000

Affected products

Power DNS Pdns-Recursor — versions versions 4.1.x before 4.1.9
Powerdns Recursor

Weakness classification (CWE)

References

docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.html (Vendor Advisory)
bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2019-3807?: CVE-2019-3807 is a low-severity vulnerability in Power DNS Pdns-Recursor, classified under Insufficient Verification of Data Authenticity. CVSS score: 3.7/10. Published 2019-01-29.
How severe is CVE-2019-3807?: Low severity. CVSS v3 base score is 3.7 out of 10.