CVE-2021-22882: UI UniFi Protect Controller

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

UniFi Protect before v1.17.1 allows an attacker to use spoofed cameras to perform a denial-of-service attack that may cause the UniFi Protect controller to crash.

Affected products

• UI UniFi Protect Controller: before 1.17.1 (fixed in 1.17.1)

Published 2021-02-23. Last modified 2026-06-17.