Ubiquiti Inc Unifi Os Server vulnerabilities

CVE-2026-34910 [CRITICAL] CWE-20 CVE-2026-34910: A malicious actor with access to the network could exploit an Improper Input Validation vulnerabilit A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

CVE-2026-34908 [CRITICAL] CWE-284 CVE-2026-34908: A malicious actor with access to the network could exploit an Improper Access Control vulnerability A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS devices to make unauthorized changes to the system.

CVE-2026-34909 [CRITICAL] CWE-22 CVE-2026-34909: A malicious actor with access to the network could exploit a Path Traversal vulnerability found in U A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to access an underlying account.

CVE-2026-47370 [CRITICAL] CWE-20 CVE-2026-47370: A malicious actor with access to the network and low privileges could exploit an Improper Input Vali A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to execute a Command Injection within such UniFi OS devices or instances.

CVE-2026-77550 [CRITICAL] CWE-93 CVE-2026-77550: A malicious actor with access to the network could exploit an Improper Neutralization of CRLF Sequen A malicious actor with access to the network 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.

CVE-2026-77534 [CRITICAL] CWE-284 CVE-2026-77534: A malicious actor with access to the network and low privileges could exploit an Improper Access Con A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.

CVE-2026-77536 [CRITICAL] CWE-284 CVE-2026-77536: A malicious actor with access to the network and low privileges could exploit an Improper Access Con A malicious actor with access to the network and low privileges could exploit an Improper Access Control vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.

CVE-2026-54402 [HIGH] CWE-20 CVE-2026-54402: A malicious actor with access to the network and low privileges could exploit an Improper Input Vali 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.

CVE-2026-47369 [CRITICAL] CWE-20 CVE-2026-47369: A malicious actor with access to the network and low privileges could exploit an Improper Input Vali A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.

CVE-2026-77540 [CRITICAL] CWE-20 CVE-2026-77540: A malicious actor with access to the network and high privileges could exploit an Improper Input Val A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.

CVE-2026-77539 [CRITICAL] CWE-20 CVE-2026-77539: A malicious actor with access to the network and high privileges could exploit an Improper Input Val A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS Server to execute a Command Injection on the host device.

CVE-2026-54403 [HIGH] CWE-22 CVE-2026-54403: A malicious actor with access to the network could exploit a Path Traversal vulnerability found in c A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.

CVE-2026-33000 [CRITICAL] CWE-20 CVE-2026-33000: A malicious actor with access to the network and high privileges could exploit an Improper Input Val 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.

CVE-2026-77549 [CRITICAL] CWE-93 CVE-2026-77549: A malicious actor with access to the network and under certain conditions could exploit an Improper 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.

CVE-2026-54404 [HIGH] CWE-89 CVE-2026-54404: A malicious actor with access to the network and low privileges could exploit a series of authentica A malicious actor with access to the network and low privileges could exploit a series of authenticated SQL Injection vulnerabilities found in UniFi OS to escalate privileges within such UniFi OS devices or instances.

CVE-2026-77545 [CRITICAL] CWE-489 CVE-2026-77545: A malicious actor with access to the network, low privileges and under certain conditions could expl A malicious actor with access to the network, low privileges and under certain conditions could exploit an Active Debug Code vulnerability found in certain devices running UniFi OS to escalate privileges within such UniFi OS devices or instances.

CVE-2026-54401 [HIGH] CWE-918 CVE-2026-54401: A malicious actor with access to the network and low privileges could exploit a Server-Side Request A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) to escalate privileges within such UniFi OS devices or instances.

CVE-2026-47368 [HIGH] CWE-22 CVE-2026-47368: A malicious actor with access to the network could exploit a Path Traversal vulnerability found in c A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to obtain data from such UniFi OS devices or instances.

CVE-2026-34911 [HIGH] CWE-22 CVE-2026-34911: A malicious actor with access to the network and low privileges could exploit a Path Traversal vulne A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information.

CVE-2026-55110 [MEDIUM] CWE-942 CVE-2026-55110: A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Origin R A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Origin Resource Sharing (CORS) misconfiguration found in UniFi OS to trigger actions in UniFi OS using that user's session.