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    CVE-2020-36872

    BACnet Test Server versions up to and including 1.01 contains a remote denial of service vulnerability in its BACnet/IP BVLC packet handling. The server fails to properly validate the BVLC Length field in incoming UDP BVLC frames on the default BACnet port (47808/udp). A remote unauthenticated attacker can send a malformed BVLC Length value to trigger an access violation and crash the application, resulting in a denial of service.

    Published:Nov 26, 2025
    Last Modified:Jul 28, 2026
    EPS:Nov 26, 2025
    EPSS Score:0.00482
    CVSS Score:8.7

    Affected Products

    Vendor
    Bacnet Test
    Product
    Test Server
    Vendor
    Philips
    Product
    Interoperability Solution Xds

    Exploits

    No exploit reference

    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