What’s Vulnerable › Vulnerabilities

CVE-2019-3807

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-29 · updated 2026-06-17
• Weakness: CWE-345

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.

Affected products

• PowerDNS Recursor: from 4.1.0 through 4.1.8

References

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3807
• https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.html
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3807
• https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2019-02.html

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