Vulnerability in Ubiquiti Inc Unifi Connect Application

CVE-2026-77538

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi Connect Application to escalate privileges within the UniFi Connect Application.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L.

EPSS exploit prediction

EPSS: 0.004 (31.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-77538: held from 0.002 to 0.004.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-77538?
CVE-2026-77538 is a high-severity vulnerability in Ubiquiti Inc Unifi Connect Application, classified under Improper Access Control. CVSS score: 8.2/10. Published 2026-08-26.
How severe is CVE-2026-77538?
High severity. CVSS v3 base score is 8.2 out of 10.