# CVE-2026-77549

## Summary

- **CVE ID:** CVE-2026-77549
- **Severity:** CRITICAL
- **CVSS Score:** 9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-93
- **Published:** Aug 26, 2026
- **Last Modified:** Aug 27, 2026

## Description

A malicious actor with access to the network and under certain conditions could exploit an Improper Neutralization of CRLF Sequences vulnerability found in certain devices running UniFi OS to bypass authentication to such UniFi OS devices or instances.

## Affected Products

- Ubiquiti Inc — UniFi OS Server (0)
- Ubiquiti Inc — Cloud Keys (0)
- Ubiquiti Inc — Network Video Recorders (0)
- Ubiquiti Inc — Enterprise Network Video Recorders (0)
- Ubiquiti Inc — Enterprise Network Attached Storage (0)
- Ubiquiti Inc — Dream Machines (0)
- Ubiquiti Inc — Enterprise Firewall Core (0)
- Ubiquiti Inc — Dream Routers (0)
- Ubiquiti Inc — Enterprise Fortress Gateway (0)
- Ubiquiti Inc — Cloud Gateways (0)
- Ubiquiti Inc — Dream Wall (0)
- Ubiquiti Inc — Express 7 (0)
- Ubiquiti Inc — Network Attached Storage (0)
- Ubiquiti Inc — Express (0)

## References

- [CNA](https://community.ui.com/releases/Security-Advisory-Bulletin-067/fc4a3488-7c43-4628-8bab-f715e96dbfc9)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 22.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._