CVE-2019-25652 (GCVE-0-2019-25652)
Vulnerability from cvelistv5 – Published: 2026-03-27 21:19 – Updated: 2026-07-15 01:24
VLAI
EPSS
VEX
Title
UniFi Network Controller Improper Certificate Validation Leading to Credential Theft via MITM
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-30 13:56 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://community.ui.com/releases/Security-Adviso… | vendor-advisory |
| https://www.vulncheck.com/advisories/unifi-networ… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Ubiquiti | UniFi Network Controller |
Affected:
0 , < 5.6.42
(semver)
Affected: 5.6.43 , < 5.10.22 (semver) Affected: 5.11 , < 5.11.18 (custom) cpe:2.3:a:ui:unifi_network_controller:*:*:*:*:*:*:*:* cpe:2.3:a:ui:unifi_network_controller:*:*:*:*:*:*:*:* cpe:2.3:a:ui:unifi_network_controller:*:*:*:*:*:*:*:* |
Date Public
2019-05-15 00:00
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