CVE Catalog

CVE-2026-54402

CriticalCVSS 9.9
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.87%

55th percentile - higher than 55% of all known CVEs

Summary

A vulnerability in UniFi OS allows an attacker with network access and low privileges to execute command injection on the host device due to improper input validation.

Risk Assessment

An attacker could gain full control of the device, compromising confidentiality, integrity, and availability of the system.

Recommendation

Immediately update UniFi OS to the latest version and restrict network access to the devices to trusted hosts only.

Original NVD description (English source)

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi OS to execute a Command Injection on the host device.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS