Summary
| Parameter | Value |
|---|---|
| CVE ID | CVE-2026-34909 |
| Alert Source | GitHub Advisory - Critical Vulnerability |
| CVE Publication Year | 2026 |
| Date Published | 2026-05-22 |
| Vendor | Ubiquiti |
| Product | UniFi OS |
| CVSS Score | 10.0 (critical) |
| EPSS Score | No data |
| CISA KEV | No |
| Ransomware | Not confirmed |
Vulnerability Description
A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.
Required Actions
Apply vendor patches or mitigations as soon as available.
Who Is Affected?
This vulnerability affects UniFi OS by Ubiquiti. Check if your organization uses this software and requires updates.
Sources
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