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CVE-2019-25652

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CVE-2019-25652

Published: Mar 27, 2026

Modified: May 25, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

UniFi Network Controller before version 5.10.22 and 5.11.x before 5.11.18 contains an improper certificate verification vulnerability that allows adjacent network attackers to conduct man-in-the-middle attacks by presenting a false SSL certificate during SMTP connections. Attackers can intercept SMTP traffic and obtain credentials by exploiting the insecure SSL host verification mechanism in the SMTP certificate validation process.

VendorProductVersions

Ubiquiti

UniFi Network Controller

affected
0 - < 5.6.42
affected
5.6.43 - < 5.10.22
affected
5.11 - < 5.11.18

Weaknesses (CWE)

CWE-295

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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