CVE-2019-3807

Name: CVE-2019-3807
Creator: NVD / NIST
Published: 2019-01-29T17:29:00.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.36%

Last modified Jun 17, 2026

CVE-2019-3807 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

0.36%

27.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Powerdns	Recursor	>= 4.1.0, <= 4.1.8

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3807Issue Tracking, Third Party Advisory
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.htmlVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3807Issue Tracking, Third Party Advisory
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.htmlVendor Advisory

Timeline

Published: Jan 29, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-3807?

How severe is CVE-2019-3807?

Severity scoring for CVE-2019-3807 is pending analysis. The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2019-3807?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-3807?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST