CVE-2026-77539
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
0th
A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.
| CWE | CWE-20 |
| Vendor | ubiquiti inc |
| Product | unifi os server |
| Published | Aug 26, 2026 |
| Last Updated | Aug 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Ubiquiti Inc / UniFi OS Server
0 < 5.1.37