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    CVE-2026-34909

    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.

    Published:May 22, 2026
    Last Modified:Aug 11, 2026
    EPS:May 22, 2026
    EPSS Score:0.63897
    CVSS Score:10

    CISA Notification

    Description

    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.

    Required Action:

    Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

    Notes:

    No extra notes provided.

    Due Date
    Jun 26, 2026
    77 days ago
    Alert Date
    Jun 23, 2026
    80 days ago

    Affected Products

    Vendor
    Ubiquiti
    Product
    Efg
    Vendor
    Ubiquiti
    Product
    Envr
    Vendor
    Ubiquiti
    Product
    Envr-core
    Vendor
    Ubiquiti
    Product
    Express 7
    Vendor
    Ubiquiti
    Product
    Ucg-fiber
    Vendor
    Ubiquiti
    Product
    Ucg-industrial
    Vendor
    Ubiquiti
    Product
    Ucg-max
    Vendor
    Ubiquiti
    Product
    Ucg-ultra
    Vendor
    Ubiquiti
    Product
    Uck
    Vendor
    Ubiquiti
    Product
    Uck-enterprise
    Vendor
    Ubiquiti
    Product
    Uckp
    Vendor
    Ubiquiti
    Product
    Udm
    Vendor
    Ubiquiti
    Product
    Udm-beast
    Vendor
    Ubiquiti
    Product
    Udm-pro
    Vendor
    Ubiquiti
    Product
    Udm-pro-max
    Vendor
    Ubiquiti
    Product
    Udm-se
    Vendor
    Ubiquiti
    Product
    Udr
    Vendor
    Ubiquiti
    Product
    Udr-5g
    Vendor
    Ubiquiti
    Product
    Udr7
    Vendor
    Ubiquiti
    Product
    Udw
    Vendor
    Ubiquiti
    Product
    Unas-2
    Vendor
    Ubiquiti
    Product
    Unas-4
    Vendor
    Ubiquiti
    Product
    Unas-pro
    Vendor
    Ubiquiti
    Product
    Unas-pro-4
    Vendor
    Ubiquiti
    Product
    Unas-pro-8
    Vendor
    Ubiquiti
    Product
    Unifi Os
    Vendor
    Ubiquiti
    Product
    Unvr
    Vendor
    Ubiquiti
    Product
    Unvr-g2
    Vendor
    Ubiquiti
    Product
    Unvr-g2-pro
    Vendor
    Ubiquiti
    Product
    Unvr-instant
    Vendor
    Ubiquiti
    Product
    Unvr-pro

    Related CVEs

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High