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CRITICAL · 9.8

CVE-2019-20790

OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM fie...

Vulnerability Description

OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM field.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
TrusteddomainOpendmarc>= 1.3.0, <= 1.3.2
Pypolicyd-Spf ProjectPypolicyd-Spf2.0.2
FedoraprojectFedora33

Related Weaknesses (CWE)

CWE-290

References

FAQ

What is CVE-2019-20790?

CVE-2019-20790 is a vulnerability with a CVSS score of 9.8 (CRITICAL). OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM fie...

How severe is CVE-2019-20790?

CVE-2019-20790 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2019-20790?

Check the references section above for vendor advisories and patch information. Affected products include: Trusteddomain Opendmarc, Pypolicyd-Spf Project Pypolicyd-Spf, Fedoraproject Fedora.