CVE-2026-33000NVD

Vulnerability Summary

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

Severity Level

CRITICAL(9.1)

Published Date

May 22, 2026

Last Modified

Jul 23, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

1.25%Probability

Root Weakness (CWE)

CWE-20: Improper Input Validation ↗

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required.

CVSS v3.1 Base Metrics — Score 9.1 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Ui Unifi Os Server < 5.0.8

Patched Versions

Ui Unifi Os Server 5.0.8

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