CVE-2020-36519

Public Exploit

Description

Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF. This occurs through misuse of the address rewrite feature. (The domain being spoofed must be a customer in the Mimecast grid from which the spoofing occurs.)

4.9

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.22%

Third-Party Advisory wesleyk.me

Affected: n/a n/a

References

Link	Tags
https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-36519?: CVE-2020-36519 has been scored as a medium severity vulnerability.
How to fix CVE-2020-36519?: To fix CVE-2020-36519, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-36519 being actively exploited in the wild?: It is possible that CVE-2020-36519 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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