CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
79.0%
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.
bugs.launchpad.net/pypolicyd-spf/+bug/1838816
launchpad.net/bugs/cve/CVE-2019-20790
nvd.nist.gov/vuln/detail/CVE-2019-20790
security-tracker.debian.org/tracker/CVE-2019-20790
sourceforge.net/p/opendmarc/tickets/235/
www.cve.org/CVERecord?id=CVE-2019-20790
www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
79.0%