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Medium 6.1Published Jul 2, 2026
CVE-2026-55110A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Origin Resource Sharing (CORS) misconfiguration found in UniFi OS to trigger actions in UniFi OS using that…
Updated under an hour ago ()
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It affects ui unifi_os_server and 29 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Origin Resource Sharing (CORS) misconfiguration found in UniFi OS to trigger actions in UniFi OS using that user's session.
- CVSS
- 6.1 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-942
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Undergoing Analysis
- Record last updated
- Jul 9, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ui unifi_os_server ui:unifi_os_server | through 5.1.15 | NVD |
ui unifi_dream_machine_beast_firmware ui:unifi_dream_machine_beast_firmware | through 5.1.15; through 5.1.15 | NVD |
ui unifi_dream_machine_pro_firmware ui:unifi_dream_machine_pro_firmware | through 5.1.15 | NVD |
ui unifi_dream_machine_special_edition_firmware ui:unifi_dream_machine_special_edition_firmware | through 5.1.15 | NVD |
ui unifi_dream_machine_pro_max_firmware ui:unifi_dream_machine_pro_max_firmware | through 5.1.15 | NVD |
ui enterprise_fortress_gateway_firmware ui:enterprise_fortress_gateway_firmware | through 5.1.15 | NVD |
ui unifi_dream_router_firmware ui:unifi_dream_router_firmware | through 5.1.15 | NVD |
ui unifi_dream_wall_firmware ui:unifi_dream_wall_firmware | through 5.1.15 | NVD |
ui unifi_dream_router_7_firmware ui:unifi_dream_router_7_firmware | through 5.1.15 | NVD |
ui unifi_express_7_firmware ui:unifi_express_7_firmware | through 5.1.15 | NVD |
ui unifi_cloudkey_firmware ui:unifi_cloudkey_firmware | through 5.1.15 | NVD |
ui unifi_cloud_key_plus_firmware ui:unifi_cloud_key_plus_firmware | through 5.1.15 | NVD |
ui unifi_cloudkey_enterprise_firmware ui:unifi_cloudkey_enterprise_firmware | through 5.1.15 | NVD |
ui unifi_network_video_recorder_firmware ui:unifi_network_video_recorder_firmware | through 5.1.15 | NVD |
ui unifi_network_video_recorder_pro_firmware ui:unifi_network_video_recorder_pro_firmware | through 5.1.15 | NVD |
ui unifi_network_video_recorder_instant_firmware ui:unifi_network_video_recorder_instant_firmware | through 5.1.15 | NVD |
ui enterprise_network_video_recorder_firmware ui:enterprise_network_video_recorder_firmware | through 5.1.15 | NVD |
ui enterprise_network_video_recorder_core_firmware ui:enterprise_network_video_recorder_core_firmware | through 5.1.15 | NVD |
ui unifi_network_video_recorder_g2_firmware ui:unifi_network_video_recorder_g2_firmware | through 5.1.15 | NVD |
ui unifi_network_video_recorder_g2_pro_firmware ui:unifi_network_video_recorder_g2_pro_firmware | through 5.1.15 | NVD |
ui unifi_cloud_gateway_ultra_firmware ui:unifi_cloud_gateway_ultra_firmware | through 5.1.15 | NVD |
ui unifi_cloud_gateway_max_firmware ui:unifi_cloud_gateway_max_firmware | through 5.1.15 | NVD |
ui unifi_cloud_gateway_industrial_firmware ui:unifi_cloud_gateway_industrial_firmware | through 5.1.15 | NVD |
ui unifi_cloud_gateway_fiber_firmware ui:unifi_cloud_gateway_fiber_firmware | through 5.1.15 | NVD |
ui unas_2_firmware ui:unas_2_firmware | through 5.1.16 | NVD |
ui unas_4_firmware ui:unas_4_firmware | through 5.1.16 | NVD |
ui unas_pro_firmware ui:unas_pro_firmware | through 5.1.16 | NVD |
ui unas_pro_4_firmware ui:unas_pro_4_firmware | through 5.1.16 | NVD |
ui unas_pro_8_firmware ui:unas_pro_8_firmware | through 5.1.16 | NVD |
ui enterprise_firewall_core_firmware ui:enterprise_firewall_core_firmware | through 5.1.18 | NVD |
References
- https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afcvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.