CVE-2026-34908Ubiquiti UniFi OS Improper Access Control Vulnerability

A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS devices to make unauthorized changes to the system.

10.0 CRITICALEPSS 88.89%⚡ Known Exploited (CISA KEV)NVD: Published

Last updated: 2026-06-24 03:55 UTC

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
10.0	CRITICAL	3.1hackerone (CNA)	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Details

CVE ID: CVE-2026-34908
Status: Published
Assigner (CNA): hackerone
Published: May 22, 2026
Last modified: 2026-06-24 03:55 UTC
Weaknesses: CWE-284 · Improper Access Control - Generic

Sources

NVD (unavailable at last refresh)
CVE.org
CISA KEV
FIRST EPSS

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