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    Dashboard / CVE / CVE-2025-7673

    CVE-2025-7673

    A buffer overflow vulnerability in the URL parser of the zhttpd web server in Zyxel VMG8825-T50K firmware versions prior to V5.50(ABOM.5)C0 could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and potentially execute arbitrary code by sending a specially crafted HTTP request.

    Published:Jul 16, 2025
    Last Modified:Feb 26, 2026
    EPS:Jul 16, 2025
    EPSS Score:0.00397
    CVSS Score:9.8

    Affected Products

    Vendor
    Zyxel
    Product
    Emg3525-t50b
    Vendor
    Zyxel
    Product
    Emg3525-t50b Firmware
    Vendor
    Zyxel
    Product
    Emg5523-t50b
    Vendor
    Zyxel
    Product
    Emg5523-t50b Firmware
    Vendor
    Zyxel
    Product
    Emg5723-t50k
    Vendor
    Zyxel
    Product
    Emg5723-t50k Firmware
    Vendor
    Zyxel
    Product
    Emg6726-b10a
    Vendor
    Zyxel
    Product
    Emg6726-b10a Firmware
    Vendor
    Zyxel
    Product
    Ex3510-b0
    Vendor
    Zyxel
    Product
    Ex3510-b0 Firmware
    Vendor
    Zyxel
    Product
    Ex5510-b0
    Vendor
    Zyxel
    Product
    Ex5510-b0 Firmware
    Vendor
    Zyxel
    Product
    Vmg1312-t20b
    Vendor
    Zyxel
    Product
    Vmg1312-t20b Firmware
    Vendor
    Zyxel
    Product
    Vmg3625-t50b
    Vendor
    Zyxel
    Product
    Vmg3625-t50b Firmware
    Vendor
    Zyxel
    Product
    Vmg3925-b10b
    Vendor
    Zyxel
    Product
    Vmg3925-b10b Firmware
    Vendor
    Zyxel
    Product
    Vmg3925-b10c
    Vendor
    Zyxel
    Product
    Vmg3925-b10c Firmware
    Vendor
    Zyxel
    Product
    Vmg3927-b50a
    Vendor
    Zyxel
    Product
    Vmg3927-b50a Firmware
    Vendor
    Zyxel
    Product
    Vmg3927-b50b
    Vendor
    Zyxel
    Product
    Vmg3927-b50b Firmware
    Vendor
    Zyxel
    Product
    Vmg3927-b60a
    Vendor
    Zyxel
    Product
    Vmg3927-b60a Firmware
    Vendor
    Zyxel
    Product
    Vmg3927-t50k
    Vendor
    Zyxel
    Product
    Vmg3927-t50k Firmware
    Vendor
    Zyxel
    Product
    Vmg4005-b50b
    Vendor
    Zyxel
    Product
    Vmg4005-b50b Firmware
    Vendor
    Zyxel
    Product
    Vmg4927-b50a
    Vendor
    Zyxel
    Product
    Vmg4927-b50a Firmware
    Vendor
    Zyxel
    Product
    Vmg8623-t50b
    Vendor
    Zyxel
    Product
    Vmg8623-t50b Firmware
    Vendor
    Zyxel
    Product
    Vmg8825-b50a
    Vendor
    Zyxel
    Product
    Vmg8825-b50a Firmware
    Vendor
    Zyxel
    Product
    Vmg8825-b60a
    Vendor
    Zyxel
    Product
    Vmg8825-b60a Firmware
    Vendor
    Zyxel
    Product
    Vmg8825-bx0b
    Vendor
    Zyxel
    Product
    Vmg8825-bx0b Firmware
    Vendor
    Zyxel
    Product
    Vmg8825-t50k
    Vendor
    Zyxel
    Product
    Vmg8825-t50k Firmware
    Vendor
    Zyxel
    Product
    Vmg8924-b10d
    Vendor
    Zyxel
    Product
    Vmg8924-b10d Firmware
    Vendor
    Zyxel
    Product
    Xmg3927-b50a
    Vendor
    Zyxel
    Product
    Xmg3927-b50a Firmware
    Vendor
    Zyxel
    Product
    Xmg8825-b50a
    Vendor
    Zyxel
    Product
    Xmg8825-b50a Firmware

    Exploits

    No exploit reference

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    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