What is CVE-2026-77537?

CVE-2026-77537 is a critical-severity vulnerability in Ubiquiti Inc Unifi Protect Application, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2026-08-26.

How severe is CVE-2026-77537?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Improper input validation in Ubiquiti Inc Unifi Protect Application

CVE-2026-77537

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Protect Application to execute a Command Injection on the host device.

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

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Ubiquiti Inc Unifi Protect Application

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

fe490ce8-0395-4072-90d8-2707e1bdf984

Frequently asked questions

What is CVE-2026-77537?: CVE-2026-77537 is a critical-severity vulnerability in Ubiquiti Inc Unifi Protect Application, classified under Improper Input Validation. CVSS score: 10.0/10. Published 2026-08-26.
How severe is CVE-2026-77537?: Critical severity. CVSS v3 base score is 10.0 out of 10.