# CVE-2026-77553

## Summary

- **CVE ID:** CVE-2026-77553
- **Severity:** CRITICAL
- **CVSS Score:** 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-284
- **Published:** Aug 26, 2026
- **Last Modified:** Aug 26, 2026

## Description

A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in UniFi Access Application to escalate privileges on the host device.

## Affected Products

- Ubiquiti Inc — UniFi Access Application (0)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 14.3

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._