CVE-2020-36519 json
Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF.
published 2022-03-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-23996
- cvss
- 4.9
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
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.)
Patch / fix
- mimecast email_security 2020-01-10
Exploit prediction
0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wesleyk.me https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
References
-
wesleyk.me
/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/
exploit, third-party-advisory
Sources
- CVE List CVE-2020-36519
- NVD CVE-2020-36519
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