Command Injection in UniFi OS Devices

Publication date: 2026-05-22

Last updated on: 2026-06-24

Assigner: HackerOne

Description

A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-22

Last Modified

2026-06-24

Generated

2026-06-30

AI Q&A

2026-05-22

EPSS Evaluated

2026-06-28

NVD

CVE-2026-33000

EUVD

EUVD-2026-31385

Affected Vendors & Products

Vendor	Product	Version / Range
ui	unifi_os_server	to 5.0.8 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability is an Improper Input Validation issue found in UniFi OS devices. A malicious actor who has network access and high privileges can exploit this flaw to perform Command Injection, which means they can execute arbitrary commands on the affected device.

Impact Analysis

Exploiting this vulnerability can have severe impacts including complete compromise of the affected UniFi OS device. The attacker can execute commands with high privileges, potentially leading to full control over the device, data theft, disruption of services, and further network compromise.

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