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    CVE-2026-31164

    An issue was discovered in ToToLink A3300R firmware v17.0.0cu.557_B20221024 allowing attackers to execute arbitrary commands via the pppoeMtu parameter to /cgi-bin/cstecgi.cgi.

    Published:Apr 23, 2026
    Last Modified:Apr 28, 2026
    EPS:Apr 23, 2026
    EPSS Score:0.00199
    CVSS Score:6.5

    Affected Products

    Vendor
    Totolink
    Product
    A3300r
    Vendor
    Totolink
    Product
    A3300r Firmware

    Exploits

    https://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-pppoe-mtu-cmd-injectionhttps://github.com/Svigo-o/TOTOLINK-Vul/tree/main/totolink-a3300r-pppoe-mtu-cmd-injection

    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