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    Dashboard / CVE / CVE-2022-43391

    CVE-2022-43391

    A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause denial-of-service (DoS) conditions by sending a crafted HTTP request.

    Published:Jan 11, 2023
    Last Modified:Feb 25, 2026
    EPS:Jan 11, 2023
    EPSS Score:0.01418
    CVSS Score:6.5

    Affected Products

    Vendor
    Zyxel
    Product
    Ax7501-b0
    Vendor
    Zyxel
    Product
    Ax7501-b0 Firmware
    Vendor
    Zyxel
    Product
    Dx3301-t0
    Vendor
    Zyxel
    Product
    Dx3301-t0 Firmware
    Vendor
    Zyxel
    Product
    Dx4510-b1
    Vendor
    Zyxel
    Product
    Dx4510-b1 Firmware
    Vendor
    Zyxel
    Product
    Dx5401-b0
    Vendor
    Zyxel
    Product
    Dx5401-b0 Firmware
    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
    Ex3301-t0
    Vendor
    Zyxel
    Product
    Ex3301-t0 Firmware
    Vendor
    Zyxel
    Product
    Ex3510-b0
    Vendor
    Zyxel
    Product
    Ex3510-b0 Firmware
    Vendor
    Zyxel
    Product
    Ex5401-b0
    Vendor
    Zyxel
    Product
    Ex5401-b0 Firmware
    Vendor
    Zyxel
    Product
    Ex5501-b0
    Vendor
    Zyxel
    Product
    Ex5501-b0 Firmware
    Vendor
    Zyxel
    Product
    Ex5510-b0
    Vendor
    Zyxel
    Product
    Ex5510-b0 Firmware
    Vendor
    Zyxel
    Product
    Ex5512-t0
    Vendor
    Zyxel
    Product
    Ex5512-t0 Firmware
    Vendor
    Zyxel
    Product
    Ex5600-t1
    Vendor
    Zyxel
    Product
    Ex5600-t1 Firmware
    Vendor
    Zyxel
    Product
    Ex5601-t0
    Vendor
    Zyxel
    Product
    Ex5601-t0 Firmware
    Vendor
    Zyxel
    Product
    Ex5601-t1
    Vendor
    Zyxel
    Product
    Ex5601-t1 Firmware
    Vendor
    Zyxel
    Product
    Lte3301-plus
    Vendor
    Zyxel
    Product
    Lte3301-plus Firmware
    Vendor
    Zyxel
    Product
    Lte5388-m804
    Vendor
    Zyxel
    Product
    Lte5388-m804 Firmware
    Vendor
    Zyxel
    Product
    Lte5398-m904
    Vendor
    Zyxel
    Product
    Lte5398-m904 Firmware
    Vendor
    Zyxel
    Product
    Lte7240-m403
    Vendor
    Zyxel
    Product
    Lte7240-m403 Firmware
    Vendor
    Zyxel
    Product
    Lte7461-m602
    Vendor
    Zyxel
    Product
    Lte7461-m602 Firmware
    Vendor
    Zyxel
    Product
    Lte7480-m804
    Vendor
    Zyxel
    Product
    Lte7480-m804 Firmware
    Vendor
    Zyxel
    Product
    Lte7480-s905
    Vendor
    Zyxel
    Product
    Lte7480-s905 Firmware
    Vendor
    Zyxel
    Product
    Lte7485-s905
    Vendor
    Zyxel
    Product
    Lte7485-s905 Firmware
    Vendor
    Zyxel
    Product
    Lte7490-m904
    Vendor
    Zyxel
    Product
    Lte7490-m904 Firmware
    Vendor
    Zyxel
    Product
    Nebula Lte3301-plus
    Vendor
    Zyxel
    Product
    Nebula Lte3301-plus Firmware
    Vendor
    Zyxel
    Product
    Nebula Lte7461-m602
    Vendor
    Zyxel
    Product
    Nebula Lte7461-m602 Firmware
    Vendor
    Zyxel
    Product
    Nebula Nr5101
    Vendor
    Zyxel
    Product
    Nebula Nr5101 Firmware
    Vendor
    Zyxel
    Product
    Nebula Nr7101
    Vendor
    Zyxel
    Product
    Nebula Nr7101 Firmware
    Vendor
    Zyxel
    Product
    Nr5101
    Vendor
    Zyxel
    Product
    Nr5101 Firmware
    Vendor
    Zyxel
    Product
    Nr7101
    Vendor
    Zyxel
    Product
    Nr7101 Firmware
    Vendor
    Zyxel
    Product
    Nr7102
    Vendor
    Zyxel
    Product
    Nr7102 Firmware
    Vendor
    Zyxel
    Product
    Pm3100-t0
    Vendor
    Zyxel
    Product
    Pm3100-t0 Firmware
    Vendor
    Zyxel
    Product
    Pm5100-t0
    Vendor
    Zyxel
    Product
    Pm5100-t0 Firmware
    Vendor
    Zyxel
    Product
    Pm7300-t0
    Vendor
    Zyxel
    Product
    Pm7300-t0 Firmware
    Vendor
    Zyxel
    Product
    Pm7320-b0
    Vendor
    Zyxel
    Product
    Pm7320-b0 Firmware
    Vendor
    Zyxel
    Product
    Pmg5317-t20b
    Vendor
    Zyxel
    Product
    Pmg5317-t20b Firmware
    Vendor
    Zyxel
    Product
    Pmg5617-t20b2
    Vendor
    Zyxel
    Product
    Pmg5617-t20b2 Firmware
    Vendor
    Zyxel
    Product
    Pmg5617ga
    Vendor
    Zyxel
    Product
    Pmg5617ga Firmware
    Vendor
    Zyxel
    Product
    Pmg5622ga
    Vendor
    Zyxel
    Product
    Pmg5622ga Firmware
    Vendor
    Zyxel
    Product
    Vmg3927-t50k
    Vendor
    Zyxel
    Product
    Vmg3927-t50k Firmware
    Vendor
    Zyxel
    Product
    Vmg4005-b50a
    Vendor
    Zyxel
    Product
    Vmg4005-b50a Firmware
    Vendor
    Zyxel
    Product
    Vmg4005-b60a
    Vendor
    Zyxel
    Product
    Vmg4005-b60a Firmware
    Vendor
    Zyxel
    Product
    Vmg8623-t50b
    Vendor
    Zyxel
    Product
    Vmg8623-t50b Firmware
    Vendor
    Zyxel
    Product
    Vmg8825-t50k
    Vendor
    Zyxel
    Product
    Vmg8825-t50k Firmware
    Vendor
    Zyxel
    Product
    Wx3100-t0
    Vendor
    Zyxel
    Product
    Wx3100-t0 Firmware
    Vendor
    Zyxel
    Product
    Wx3401-b0
    Vendor
    Zyxel
    Product
    Wx3401-b0 Firmware
    Vendor
    Zyxel
    Product
    Wx5600-t0
    Vendor
    Zyxel
    Product
    Wx5600-t0 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