What’s Vulnerable › Vulnerabilities
CVE-2026-55116
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-02 · updated 2026-07-09
- Weakness: CWE-284
Description
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 products
- Ui Unifi Connect: before 3.4.20 — fixed in 3.4.20
How to fix
Upgrade to a fixed version: Ui Unifi Connect 3.4.20. Check the vendor advisory for mitigations.
References
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