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    CVE-2022-27646

    This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.

    Published:Mar 29, 2023
    Last Modified:Feb 18, 2025
    EPS:Mar 29, 2023
    EPSS Score:0.01475
    CVSS Score:8.8

    Affected Products

    Vendor
    Netgear
    Product
    Cbr40
    Vendor
    Netgear
    Product
    Cbr40 Firmware
    Vendor
    Netgear
    Product
    Lbr1020
    Vendor
    Netgear
    Product
    Lbr1020 Firmware
    Vendor
    Netgear
    Product
    Lbr20
    Vendor
    Netgear
    Product
    Lbr20 Firmware
    Vendor
    Netgear
    Product
    R6400
    Vendor
    Netgear
    Product
    R6400 Firmware
    Vendor
    Netgear
    Product
    R6700
    Vendor
    Netgear
    Product
    R6700 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
    R7850
    Vendor
    Netgear
    Product
    R7850 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
    Rax200
    Vendor
    Netgear
    Product
    Rax200 Firmware
    Vendor
    Netgear
    Product
    Rax75
    Vendor
    Netgear
    Product
    Rax75 Firmware
    Vendor
    Netgear
    Product
    Rax80
    Vendor
    Netgear
    Product
    Rax80 Firmware
    Vendor
    Netgear
    Product
    Rbr10
    Vendor
    Netgear
    Product
    Rbr10 Firmware
    Vendor
    Netgear
    Product
    Rbr20
    Vendor
    Netgear
    Product
    Rbr20 Firmware
    Vendor
    Netgear
    Product
    Rbr40
    Vendor
    Netgear
    Product
    Rbr40 Firmware
    Vendor
    Netgear
    Product
    Rbr50
    Vendor
    Netgear
    Product
    Rbr50 Firmware
    Vendor
    Netgear
    Product
    Rbs10
    Vendor
    Netgear
    Product
    Rbs10 Firmware
    Vendor
    Netgear
    Product
    Rbs20
    Vendor
    Netgear
    Product
    Rbs20 Firmware
    Vendor
    Netgear
    Product
    Rbs40
    Vendor
    Netgear
    Product
    Rbs40 Firmware
    Vendor
    Netgear
    Product
    Rbs50
    Vendor
    Netgear
    Product
    Rbs50 Firmware
    Vendor
    Netgear
    Product
    Rs400
    Vendor
    Netgear
    Product
    Rs400 Firmware

    Exploits

    https://github.com/cyber-defence-campus/netgear_r6700v3_circled

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2021-45508 (CVSS 9.6) — Certain NETGEAR devices are affected by authentication bypass. This affects CBR40 before 2.5.0.24, CBR750 befo…
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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