CVE-2026-77536: critical vulnerability in Ubiquiti Inc Cloud Gateways
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.9epss 0.4%
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
Ubiquiti Inc · Cloud GatewaysUbiquiti Inc · Cloud KeysUbiquiti Inc · Dream MachinesUbiquiti Inc · Dream RoutersUbiquiti Inc · Dream WallUbiquiti Inc · Enterprise Firewall CoreUbiquiti Inc · Enterprise Fortress GatewayUbiquiti Inc · Enterprise Network Attached StorageUbiquiti Inc · Enterprise Network Video RecordersUbiquiti Inc · Express 7Ubiquiti Inc · Network Attached StorageUbiquiti Inc · Network Video RecordersUbiquiti Inc · UniFi OS ServerRelated CVEs — Ubiquiti Inc Cloud Gateways
In the same product, most dangerous first.