CVE-2026-54406 | BDVDB-2026-345220 Detail

UbiquitiUniFi Network Application

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.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

References#

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

Exploit#

No public exploit known

History#

Version 12026-07-02Record published in the CVE List.

Published

Published: 2026-07-02
Last modified: 2026-07-02

Vendor information

Vendor: Ubiquiti
Product: UniFi Network Application

All Ubiquiti vulnerabilities

Score

8.7 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 48.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Path Traversal

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 10.4.57
Fixed
10.4.57

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.7 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	None
Scope	Changed
Confidentiality	None
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).