CVE-2026-54400
Critical
Description
A malicious actor with access to the network and high privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
SeverityCritical
CVSS9.1
Exploit probability—
ProductUi Unifi Access
PublishedJul 2, 2026
First seenJul 2, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- ui unifi_access4.2.29 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ui unifi_access | v < 4.2.29 | 4.2.29 |
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