CVE-2026-55116: Critical severity Ubiquiti UniFi OS vulnerability
A malicious actor with access to the network and under certain network configurations could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to make unauthorized changes to such UniFi OS devices.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-55116?
CVE-2026-55116 has a severity rating of critical with a score of 9.
How do I fix CVE-2026-55116?
To fix CVE-2026-55116, update your Ubiquiti UniFi OS to the latest version provided by the vendor.
What causes CVE-2026-55116?
CVE-2026-55116 is caused by an improper access control vulnerability that allows unauthorized changes on certain UniFi OS devices.
Who is affected by CVE-2026-55116?
CVE-2026-55116 affects devices running Ubiquiti UniFi OS under specific network configurations.
What is the risk associated with CVE-2026-55116?
The risk associated with CVE-2026-55116 is high, as it allows a malicious actor to gain unauthorized access and modify device settings.