Improper Access Control in UniFi OS Devices by Ubiquiti
CVE-2026-34908

10CRITICAL

Key Information:

Vendor

Ubiquiti Inc

Status
Unifi Os Server
Udm
Udm-pro
Udm-se
Vendor
CVE Published:
22 May 2026

What is CVE-2026-34908?

A vulnerability exists in Ubiquiti's UniFi OS devices, where improper access controls allow a malicious actor with network access to exploit this weakness, leading to unauthorized modifications to the system. This issue raises significant concerns regarding the security and integrity of affected devices, necessitating immediate attention from users.

Affected Version(s)

EFG 0 < 5.1.12

ENVR 0 < 5.1.12

ENVR-Core 0 < 5.1.12

References

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

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.