Improper Input Validation in UniFi OS by Ubiquiti Networks
CVE-2026-47370

9.9CRITICAL

Key Information:

Vendor

Ubiquiti Inc

Status
Unifi Os Server
Express
Udm
Udm-pro
Vendor
CVE Published:
12 June 2026

What is CVE-2026-47370?

A vulnerability exists in certain devices running UniFi OS, where improper input validation allows malicious actors with network access and low privileges to exploit the system. This could lead to command injection attacks, enabling unauthorized commands to be executed on the affected devices, compromising the security and integrity of the network.

Affected Version(s)

EFG 0 < 5.1.15

ENVR 0 < 5.1.15

ENVR-Core 0 < 5.1.15

References

https://community.ui.com/releases/Security-Advisory-Bulle...

CVSS V3.1

Score:
9.9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.