CVE-2019-5456 describes an SMTP Man-in-the-Middle (MITM) vulnerability affecting UniFi Controller versions up to 5.10.21. An attacker can intercept SMTP traffic between the controller and the legitimate SMTP server, capturing credentials. This vulnerability carries a high CVSS score of 8.1 due to its network attack vector, high impact on confidentiality, integrity, and availability, and low attack complexity. While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential for credential compromise remains significant.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 5.10.21CPE matchmatch criteria | cpe:2.3:a:ui:unifi_controller:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.