CVE-2026-54403
Summary
| CVE | CVE-2026-54403 |
|---|---|
| State | PUBLISHED |
| Assigner | hackerone |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-02 15:17:03 UTC |
| Updated | 2026-07-10 02:46:57 UTC |
| Description | A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances. |
Risk And Classification
Primary CVSS: v3.1 8.6 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS: 0.004570000 probability, percentile 0.366490000 (date 2026-07-13)
Problem Types: CWE-22 | CWE-22 CWE-22 Path Traversal
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 8.6 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Ui | Enterprise Firewall Core | - | All | All | All |
| Operating System | Ui | Enterprise Firewall Core Firmware | All | All | All | All |
| Hardware | Ui | Enterprise Fortress Gateway | - | All | All | All |
| Operating System | Ui | Enterprise Fortress Gateway Firmware | All | All | All | All |
| Hardware | Ui | Enterprise Network Video Recorder | - | All | All | All |
| Hardware | Ui | Enterprise Network Video Recorder Core | - | All | All | All |
| Operating System | Ui | Enterprise Network Video Recorder Core Firmware | All | All | All | All |
| Operating System | Ui | Enterprise Network Video Recorder Firmware | All | All | All | All |
| Hardware | Ui | Unas 2 | - | All | All | All |
| Operating System | Ui | Unas 2 Firmware | All | All | All | All |
| Hardware | Ui | Unas 4 | - | All | All | All |
| Operating System | Ui | Unas 4 Firmware | All | All | All | All |
| Hardware | Ui | Unas Pro | - | All | All | All |
| Hardware | Ui | Unas Pro 4 | - | All | All | All |
| Operating System | Ui | Unas Pro 4 Firmware | All | All | All | All |
| Hardware | Ui | Unas Pro 8 | - | All | All | All |
| Operating System | Ui | Unas Pro 8 Firmware | All | All | All | All |
| Operating System | Ui | Unas Pro Firmware | All | All | All | All |
| Hardware | Ui | Unifi Cloudkey | - | All | All | All |
| Hardware | Ui | Unifi Cloudkey Enterprise | - | All | All | All |
| Operating System | Ui | Unifi Cloudkey Enterprise Firmware | All | All | All | All |
| Operating System | Ui | Unifi Cloudkey Firmware | All | All | All | All |
| Hardware | Ui | Unifi Cloud Gateway Fiber | - | All | All | All |
| Operating System | Ui | Unifi Cloud Gateway Fiber Firmware | All | All | All | All |
| Hardware | Ui | Unifi Cloud Gateway Industrial | - | All | All | All |
| Operating System | Ui | Unifi Cloud Gateway Industrial Firmware | All | All | All | All |
| Hardware | Ui | Unifi Cloud Gateway Max | - | All | All | All |
| Operating System | Ui | Unifi Cloud Gateway Max Firmware | All | All | All | All |
| Hardware | Ui | Unifi Cloud Gateway Ultra | - | All | All | All |
| Operating System | Ui | Unifi Cloud Gateway Ultra Firmware | All | All | All | All |
| Hardware | Ui | Unifi Cloud Key Plus | - | All | All | All |
| Operating System | Ui | Unifi Cloud Key Plus Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Machine | - | All | All | All |
| Hardware | Ui | Unifi Dream Machine Beast | - | All | All | All |
| Operating System | Ui | Unifi Dream Machine Beast Firmware | All | All | All | All |
| Operating System | Ui | Unifi Dream Machine Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Machine Pro | - | All | All | All |
| Operating System | Ui | Unifi Dream Machine Pro Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Machine Pro Max | - | All | All | All |
| Operating System | Ui | Unifi Dream Machine Pro Max Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Machine Special Edition | - | All | All | All |
| Operating System | Ui | Unifi Dream Machine Special Edition Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Router | - | All | All | All |
| Hardware | Ui | Unifi Dream Router 5g Max | - | All | All | All |
| Operating System | Ui | Unifi Dream Router 5g Max Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Router 7 | - | All | All | All |
| Operating System | Ui | Unifi Dream Router 7 Firmware | All | All | All | All |
| Operating System | Ui | Unifi Dream Router Firmware | All | All | All | All |
| Hardware | Ui | Unifi Dream Wall | - | All | All | All |
| Operating System | Ui | Unifi Dream Wall Firmware | All | All | All | All |
| Hardware | Ui | Unifi Express 7 | - | All | All | All |
| Operating System | Ui | Unifi Express 7 Firmware | All | All | All | All |
| Hardware | Ui | Unifi Network Video Recorder | - | All | All | All |
| Operating System | Ui | Unifi Network Video Recorder Firmware | All | All | All | All |
| Hardware | Ui | Unifi Network Video Recorder G2 | - | All | All | All |
| Operating System | Ui | Unifi Network Video Recorder G2 Firmware | All | All | All | All |
| Hardware | Ui | Unifi Network Video Recorder G2 Pro | - | All | All | All |
| Operating System | Ui | Unifi Network Video Recorder G2 Pro Firmware | All | All | All | All |
| Hardware | Ui | Unifi Network Video Recorder Instant | - | All | All | All |
| Operating System | Ui | Unifi Network Video Recorder Instant Firmware | All | All | All | All |
| Hardware | Ui | Unifi Network Video Recorder Pro | - | All | All | All |
| Operating System | Ui | Unifi Network Video Recorder Pro Firmware | All | All | All | All |
| Application | Ui | Unifi Os Server | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Ubiquiti Inc | UniFi OS Server | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Dream Machines | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Enterprise Fortress Gateway | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Dream Wall | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Dream Routers | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Express 7 | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Cloud Keys | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Network Video Recorders | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Enterprise Video Recorders | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Cloud Gateways | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Network Attached Storage | affected 5.1.19 semver | Not specified |
| CNA | Ubiquiti Inc | Enterprise Firewall Core | affected 5.1.19 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-422... | [email protected] | community.ui.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.