What is CVE-2026-77552?

CVE-2026-77552 is a critical-severity vulnerability in Ubiquiti Inc Unifi Enterprise Audio/video Bridge, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2026-08-26.

How severe is CVE-2026-77552?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in Ubiquiti Inc Unifi Enterprise Audio/video Bridge

CVE-2026-77552

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Enterprise Audio/Video Bridge to execute a Command Injection on the device.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ubiquiti Inc Unifi Enterprise Audio/video Bridge

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

fe490ce8-0395-4072-90d8-2707e1bdf984

Frequently asked questions

What is CVE-2026-77552?: CVE-2026-77552 is a critical-severity vulnerability in Ubiquiti Inc Unifi Enterprise Audio/video Bridge, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2026-08-26.
How severe is CVE-2026-77552?: Critical severity. CVSS v3 base score is 9.8 out of 10.