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9.1

CVE-2026-33000: UniFi OS Devices: Command Injection via Malicious Network Access

CVE-2026-33000
Summary

High-privilege network access could allow an attacker to inject malicious commands on UniFi OS devices, potentially leading to unauthorized system modifications or data exposure. This vulnerability affects network-connected UniFi OS devices, and it's essential to patch or update these devices to prevent potential exploitation. Regularly monitor and update UniFi OS devices to ensure security.

Original title
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.
Original description
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.
nvd CVSS3.1 9.1
Vulnerability type
CWE-20 Improper Input Validation
Published: 22 May 2026 · Updated: 28 May 2026 · First seen: 22 May 2026