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Vulnerability record · CVE-2026-54406 · published 2 July 2026

CVE-2026-54406: Ui unifi network application path traversal vulnerability

Ui · Unifi Network Application

A malicious actor with access to the network and high privileges could exploit a Path Traversal vulnerability found in self-hosted instances of UniFi Network Application to escalate write permission on the host device.

8.7 CVSS 3.1 High EPSS 0.59% · top 54.1% CWE-22 · Path traversal
8.7CVSS 3.1 base score
0.59%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
6 Jul 2026Last modified by NVD

Description

A malicious actor with access to the network and high privileges could exploit a Path Traversal vulnerability found in self-hosted instances of UniFi Network Application to escalate write permission on the host device.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2023-28365Ui unifi network application command injection vulnerabilityA backup file vulnerability found in UniFi applications (Version 7.3.83 and earlier) running on Linux operating systems allows application administra…EPSS 0.76%8.8CVE-2026-55114Ui unifi network application improper access control vulnerabilityA malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Network Applica…EPSS 0.47%8.3CVE-2026-55118Ui unifi network application improper access control vulnerabilityA malicious actor with access to the network,low privileges and under certain conditions could exploit an Improper Access Control vulnerability found…EPSS 0.37%7.8CVE-2024-42025Ui unifi network application command injection vulnerabilityA Command Injection vulnerability found in a Self-Hosted UniFi Network Servers (Linux) with UniFi Network Application (Version 8.3.32 and earlier) al…EPSS 0.82%7.5CVE-2026-56842Ui unifi network application incorrect authorization vulnerabilityA malicious actor with access to the network and under certain conditions could exploit an Incorrect Authorization vulnerability found in UniFi Netwo…EPSS 0.36%7.5CVE-2026-54405Ui unifi network application improper input validation vulnerabilityA malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi Network Application to execute a…EPSS 0.52%5.3CVE-2023-41721Ui unifi network application improper access control vulnerabilityInstances of UniFi Network Application that (i) are run on a UniFi Gateway Console, and (ii) are versions 7.5.176. and earlier, implement device adop…EPSS 0.59%4.8CVE-2023-32000Ui unifi network application cross-site scripting vulnerabilityA Cross-Site Scripting (XSS) vulnerability found in UniFi Network (Version 7.3.83 and earlier) allows a malicious actor with Site Administrator crede…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2026-54406), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.