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Vulnerabilities CVE-2019-25652

CVE-2019-25652

High
Open
TLP:CLEAR

UniFi Network Controller Improper Certificate Validation Leading to Credential Theft via MITM

NVD CVE.org
Data Exfiltration

AI Analysis

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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.

Details

CVSS Score
7.7
EPSS Score
0.11%

1.5th percentile

CVSS Vector
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Confidence
90%
Published
Mar 27, 2026
Last Modified
Jul 15, 2026
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