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No exploitation reportedFix available

CVE-2019-20790

No exploitation reported by the sources we read.

  • Published2020-04-27
  • WeaknessCWE-290

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2020-04-2714:15CVE publishedNVD

Versions per branch

NVD
Fedoraproject fedora
BranchAffectedFixed in
33.x= 33no fix published
34.x= 34no fix published
Trusteddomain opendmarc
BranchAffectedFixed in
1.3≥ 1.3.0, ≤ 1.3.2no fix published
1.4= 1.4.0no fix published
Pypolicyd-spf project pypolicyd-spf
BranchAffectedFixed in
2.0= 2.0.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • opendmarcUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • opendmarcUbuntu:26.10all versions · no fixed version listed
  • opendmarcUbuntu:26.04:LTSall versions · no fixed version listed
  • opendmarcUbuntu:25.10all versions · no fixed version listed
  • opendmarcUbuntu:24.04:LTSall versions · no fixed version listed
  • opendmarcUbuntu:22.04:LTSall versions · no fixed version listed
  • opendmarcUbuntu:20.04:LTSall versions · no fixed version listed
  • opendmarcUbuntu:18.04:LTSall versions · no fixed version listed

4 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-20790 Red Hat Product Security

    opendmarc: Two vulnerabilities in openDMARC 1.3.2

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-04-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-6pph-69rg-fpw6

Frequently asked questions

What is 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 field.

Is CVE-2019-20790 actively exploited?

Active exploitation of CVE-2019-20790 has not been confirmed. Its EPSS score was 2.5% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-20790?

CVE-2019-20790 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record