CVE-2026-54402 8.8 high EPSS 1.8%
High (8.8) in ui. EPSS 1.8% chance of exploitation in the next 30 days.
A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command Injection on the host device.
Severity
CVSS 3.1 8.8 high CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HEnable JavaScript to see the metric table and diagram.
EPSS 1.8% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWEs CWE-77, CWE-20
Published 2026-07-02
Modified 2026-07-10
Record from the NVD, synced 2026-10-19 Affected ui:enterprise_firewall_core_firmware ui:enterprise_fortress_gateway_firmware ui:enterprise_network_video_recorder_core_firmware ui:enterprise_network_video_recorder_firmware ui:unas_2_firmware ui:unas_4_firmware ui:unas_pro_4_firmware ui:unas_pro_8_firmware ui:unas_pro_firmware ui:unifi_cloud_gateway_fiber_firmware ui:unifi_cloud_gateway_industrial_firmware ui:unifi_cloud_gateway_max_firmware ui:unifi_cloud_gateway_ultra_firmware ui:unifi_cloud_key_plus_firmware ui:unifi_cloudkey_enterprise_firmware ui:unifi_cloudkey_firmware ui:unifi_dream_machine_beast_firmware ui:unifi_dream_machine_firmware ui:unifi_dream_machine_pro_firmware ui:unifi_dream_machine_pro_max_firmware ui:unifi_dream_machine_special_edition_firmware ui:unifi_dream_router_5g_max_firmware ui:unifi_dream_router_7_firmware ui:unifi_dream_router_firmware ui:unifi_dream_wall_firmware ui:unifi_express_7_firmware ui:unifi_network_video_recorder_firmware ui:unifi_network_video_recorder_g2_firmware ui:unifi_network_video_recorder_g2_pro_firmware ui:unifi_network_video_recorder_instant_firmware ui:unifi_network_video_recorder_pro_firmware ui:unifi_os_server References Check your stack JSON