CVE-2026-54403 | Ubiquiti UniFi OS Server up to 5.1.18 path traversal

A vulnerability classified as critical has been found in Ubiquiti UniFi OS Server, Dream Machines, Enterprise Fortress Gateway, Dream Wall, Dream Routers, Express 7, Cloud Keys, Network Video Recorders, Enterprise Video Recorders, Cloud Gateways, Network Attached Storage and Enterprise Firewall Core up to 5.1.18. Impacted is an unknown function. The manipulation leads to path traversal.

This vulnerability is documented as CVE-2026-54403. The attack can be initiated remotely. There is not any exploit available.

It is recommended to upgrade the affected component.VulDB Recent EntriesRead More