CVE-2026-77551: Critical severity Ubiquiti UniFi Connect Display Cast Pro vulnerability

Published Aug 26, 2026
·
Updated

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.

Affected Software

1 affected component
Ubiquiti UniFi Connect Display Cast Pro

Event History

Aug 26, 2026
CVE Published
via MITRE·10:37 AM
Data Sourced
via MITRE·10:37 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:16 AM
DescriptionSeverityWeakness

Frequently Asked Questions

1

Who can exploit this issue?

An attacker needs network access to the affected device. No privileges or user interaction are required, but exploitation depends on unspecified conditions.

2

What is the likely impact of successful exploitation?

Successful exploitation can allow privilege escalation on the device. The reported impact includes high confidentiality, integrity, and availability effects, and the scope may extend beyond the vulnerable component.

3

Are systems affected by default?

The available information does not state whether the vulnerable condition is present in the default configuration.

4

What mitigations are available if patching cannot be performed immediately?

The provided information does not identify a workaround. Restricting network access to the device can reduce exposure because network access is required for exploitation.

Contact

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