CVE-2026-77553: Critical severity Ubiquiti UniFi Access Application vulnerability
Published Aug 26, 2026
·Updated
A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.
Affected Software
1 affected component
Ubiquiti UniFi Access Application
Event History
Aug 26, 2026
CVE Published
via MITRE·10:42 AM
Data Sourced
via MITRE·10:42 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What level of access does an attacker need to exploit this issue?
The attacker needs network access and low-privileged access to the affected UniFi Access Application. No user interaction is required.
2
What is the likely impact of successful exploitation?
Successful exploitation can allow privilege escalation on the host device. The stated impact includes high confidentiality, integrity, and availability consequences, and the scope can extend beyond the vulnerable component.