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  1. CVEs
  2. CVE-2019-5456
  1. CVEs

CVE-2019-5456

high
  • Information
  • CPEs
  • Plugins

Description

SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record their SMTP credentials for malicious use later.

References

https://hackerone.com/reports/519582

https://community.ui.com/releases/Security-Advisory-Bulletin-003-003/982bbaa8-2a07-4f81-a5f6-0bb84753f391

https://community.ui.com/releases/9f698d0b-8279-40d3-9f1a-d36db4813124

https://community.ui.com/releases/862b962b-55f6-4324-96be-610f647d5c1c

Details

Source: Mitre, NVD

Published: 2019-07-30

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00361

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