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    CVE-2024-7331

    A vulnerability was found in TOTOLINK A3300R 17.0.0cu.557_B20221024 and classified as critical. Affected by this issue is the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-273254 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

    Published:Aug 1, 2024
    Last Modified:Aug 1, 2024
    EPS:Aug 1, 2024
    EPSS Score:0.00195
    CVSS Score:8.8

    Affected Products

    Vendor
    Totolink
    Product
    A3300r
    Vendor
    Totolink
    Product
    A3300r Firmware

    Exploits

    https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3300R/UploadCustomModule.md

    Related CVEs

    CVE-2026-31159 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31160 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31162 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31177 (CVSS 9.8) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31168 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31163 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31167 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31178 (CVSS 9.8) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31181 (CVSS 9.8) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…
    CVE-2026-31174 (CVSS 6.5) — An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbi…

    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