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    CVE-2021-34982

    NETGEAR Multiple Routers httpd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple NETGEAR routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. When parsing the strings file, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13709.

    Published:May 7, 2024
    Last Modified:Aug 14, 2025
    EPS:May 7, 2024
    EPSS Score:0.04179
    CVSS Score:8.8

    Affected Products

    Vendor
    Netgear
    Product
    D6220
    Vendor
    Netgear
    Product
    D6220 Firmware
    Vendor
    Netgear
    Product
    D6400
    Vendor
    Netgear
    Product
    D6400 Firmware
    Vendor
    Netgear
    Product
    D7000v2
    Vendor
    Netgear
    Product
    D7000v2 Firmware
    Vendor
    Netgear
    Product
    Dc112a
    Vendor
    Netgear
    Product
    Dc112a Firmware
    Vendor
    Netgear
    Product
    Dgn2200v4
    Vendor
    Netgear
    Product
    Dgn2200v4 Firmware
    Vendor
    Netgear
    Product
    Ex3700
    Vendor
    Netgear
    Product
    Ex3700 Firmware
    Vendor
    Netgear
    Product
    Ex3800
    Vendor
    Netgear
    Product
    Ex3800 Firmware
    Vendor
    Netgear
    Product
    Ex6120
    Vendor
    Netgear
    Product
    Ex6120 Firmware
    Vendor
    Netgear
    Product
    Ex6130
    Vendor
    Netgear
    Product
    Ex6130 Firmware
    Vendor
    Netgear
    Product
    Ex7000
    Vendor
    Netgear
    Product
    Ex7000 Firmware
    Vendor
    Netgear
    Product
    Ex7500
    Vendor
    Netgear
    Product
    Ex7500 Firmware
    Vendor
    Netgear
    Product
    Lax20
    Vendor
    Netgear
    Product
    Lax20 Firmware
    Vendor
    Netgear
    Product
    Mr60
    Vendor
    Netgear
    Product
    Mr60 Firmware
    Vendor
    Netgear
    Product
    Mr80
    Vendor
    Netgear
    Product
    Mr80 Firmware
    Vendor
    Netgear
    Product
    Ms60
    Vendor
    Netgear
    Product
    Ms60 Firmware
    Vendor
    Netgear
    Product
    Ms80
    Vendor
    Netgear
    Product
    Ms80 Firmware
    Vendor
    Netgear
    Product
    R6400
    Vendor
    Netgear
    Product
    R6400 Firmware
    Vendor
    Netgear
    Product
    R6400v2
    Vendor
    Netgear
    Product
    R6400v2 Firmware
    Vendor
    Netgear
    Product
    R6700v3
    Vendor
    Netgear
    Product
    R6700v3 Firmware
    Vendor
    Netgear
    Product
    R6900p
    Vendor
    Netgear
    Product
    R6900p Firmware
    Vendor
    Netgear
    Product
    R7000
    Vendor
    Netgear
    Product
    R7000 Firmware
    Vendor
    Netgear
    Product
    R7000p
    Vendor
    Netgear
    Product
    R7000p Firmware
    Vendor
    Netgear
    Product
    R7100lg
    Vendor
    Netgear
    Product
    R7100lg Firmware
    Vendor
    Netgear
    Product
    R7850
    Vendor
    Netgear
    Product
    R7850 Firmware
    Vendor
    Netgear
    Product
    R7900p
    Vendor
    Netgear
    Product
    R7900p Firmware
    Vendor
    Netgear
    Product
    R7960p
    Vendor
    Netgear
    Product
    R7960p Firmware
    Vendor
    Netgear
    Product
    R8000
    Vendor
    Netgear
    Product
    R8000 Firmware
    Vendor
    Netgear
    Product
    R8000p
    Vendor
    Netgear
    Product
    R8000p Firmware
    Vendor
    Netgear
    Product
    R8300
    Vendor
    Netgear
    Product
    R8300 Firmware
    Vendor
    Netgear
    Product
    R8500
    Vendor
    Netgear
    Product
    R8500 Firmware
    Vendor
    Netgear
    Product
    Rax15
    Vendor
    Netgear
    Product
    Rax15 Firmware
    Vendor
    Netgear
    Product
    Rax20
    Vendor
    Netgear
    Product
    Rax200
    Vendor
    Netgear
    Product
    Rax200 Firmware
    Vendor
    Netgear
    Product
    Rax20 Firmware
    Vendor
    Netgear
    Product
    Rax35v2
    Vendor
    Netgear
    Product
    Rax35v2 Firmware
    Vendor
    Netgear
    Product
    Rax38v2
    Vendor
    Netgear
    Product
    Rax38v2 Firmware
    Vendor
    Netgear
    Product
    Rax40v2
    Vendor
    Netgear
    Product
    Rax40v2 Firmware
    Vendor
    Netgear
    Product
    Rax42
    Vendor
    Netgear
    Product
    Rax42 Firmware
    Vendor
    Netgear
    Product
    Rax43
    Vendor
    Netgear
    Product
    Rax43 Firmware
    Vendor
    Netgear
    Product
    Rax45
    Vendor
    Netgear
    Product
    Rax45 Firmware
    Vendor
    Netgear
    Product
    Rax48
    Vendor
    Netgear
    Product
    Rax48 Firmware
    Vendor
    Netgear
    Product
    Rax50
    Vendor
    Netgear
    Product
    Rax50 Firmware
    Vendor
    Netgear
    Product
    Rax50s
    Vendor
    Netgear
    Product
    Rax50s Firmware
    Vendor
    Netgear
    Product
    Rax75
    Vendor
    Netgear
    Product
    Rax75 Firmware
    Vendor
    Netgear
    Product
    Rax80
    Vendor
    Netgear
    Product
    Rax80 Firmware
    Vendor
    Netgear
    Product
    Raxe450
    Vendor
    Netgear
    Product
    Raxe450 Firmware
    Vendor
    Netgear
    Product
    Raxe500
    Vendor
    Netgear
    Product
    Raxe500 Firmware
    Vendor
    Netgear
    Product
    Rs400
    Vendor
    Netgear
    Product
    Rs400 Firmware
    Vendor
    Netgear
    Product
    V6510-1fxaus
    Vendor
    Netgear
    Product
    V6510-1fxaus Firmware
    Vendor
    Netgear
    Product
    Wndr3400v3
    Vendor
    Netgear
    Product
    Wndr3400v3 Firmware
    Vendor
    Netgear
    Product
    Wnr3500lv2
    Vendor
    Netgear
    Product
    Wnr3500lv2 Firmware
    Vendor
    Netgear
    Product
    Xr1000
    Vendor
    Netgear
    Product
    Xr1000 Firmware
    Vendor
    Netgear
    Product
    Xr300
    Vendor
    Netgear
    Product
    Xr300 Firmware

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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