CVE-2019-20790
moderate-risk
Published 2020-04-27
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.
Do I need to act?
-
0.25% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Vendors
References (10)
Technical Description
https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
Technical Description
https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf
45
/ 100
moderate-risk
Severity
32/34 · Critical
Exploitability
1/34 · Minimal
Exposure
12/34 · Low