TI-2026-54071 Aliases CVE-2026-77551 GHSA-3pq9-9xj7-2qqx

Improper access control in Ubiquiti UniFi Connect Display Cast Pro

MEDIUM 41CWE-284Published 2026-08-26 · Updated 2026-08-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

A malicious actor with access to the network and under certain conditions could exploit an Improper Access Control vulnerability found in UniFi Connect Display Cast Pro to escalate privileges on the device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00373 31st percentileScored 2026-11-07

Fix Fixed UniFi Connect Display Cast Pro (Ubiquiti Inc): 1.0.111

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Ubiquiti	UniFi Connect Display Cast Pro	before 1.0.111	1.0.111	Patch available	CNA

UniFi Connect Display Cast Pro VendorUbiquiti Affected before 1.0.111 Fixed in 1.0.111 Patch available CNA

Remediation

Fix · CNA UniFi Connect Display Cast Pro (Ubiquiti Inc) Fixed in 1.0.111

Timeline

2026-10-02 Threatist record created from CVE-2026-77551
2026-10-03 Alias added: GHSA-3pq9-9xj7-2qqx

References

Other 1

https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9

TI-2026-27142 Improper input validation in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
TI-2026-27141 Path traversal in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
TI-2026-27140 Improper access control in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
TI-2010-05027 On certain Ubiquiti devices, Command Injection exists via a GET request to stainfo.cgi… KEVCVSS 3.1CRITICAL 9.8
TI-2020-19187 AirControl 1.4.2 - PreAuth Remote Code Execution CVSS 4.0CRITICAL 9.3
TI-2015-07644 Ubiquiti airOS HTTP(S) unauthenticated arbitrary file upload CVSS 3.0CRITICAL 9.8

See all 206 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences