CVE Feed

    Dashboard / CVE / CVE-2021-31755

    CVE-2021-31755

    An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setmac allows attackers to execute arbitrary code on the system via a crafted post request.

    Published:May 7, 2021
    Last Modified:Nov 10, 2025
    EPS:May 7, 2021
    EPSS Score:0.9423
    CVSS Score:9.8

    CISA Notification

    Description

    An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setmac allows attackers to execute arbitrary code on the system via a crafted post request.

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    Nov 17, 2021
    1759 days ago
    Alert Date
    Nov 3, 2021
    1773 days ago

    Affected Products

    Vendor
    Tenda
    Product
    Ac11
    Vendor
    Tenda
    Product
    Ac11 Firmware

    Exploits

    https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2021-46321 (CVSS 9.8) — Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the wifiBasi…
    CVE-2021-46265 (CVSS 9.8) — Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the wanBasic…
    CVE-2021-46263 (CVSS 9.8) — Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the wifiTime…
    CVE-2021-46264 (CVSS 9.8) — Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the onlineLi…
    CVE-2021-46262 (CVSS 9.8) — Tenda AC Series Router AC11_V02.03.01.104_CN was discovered to contain a stack buffer overflow in the PPPoE mo…
    CVE-2021-31757 (CVSS 9.8) — An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow v…
    CVE-2021-31758 (CVSS 9.8) — An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow v…
    CVE-2021-31756 (CVSS 9.8) — An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow v…

    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