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    CVE-2021-31627

    Buffer Overflow vulnerability in Tenda AC9 V1.0 through V15.03.05.19(6318), and AC9 V3.0 V15.03.06.42_multi, allows attackers to execute arbitrary code via the index parameter.

    Published:Oct 29, 2021
    Last Modified:Nov 21, 2024
    EPS:Oct 29, 2021
    EPSS Score:0.00116
    CVSS Score:8.8

    Affected Products

    Vendor
    Tendacn
    Product
    Ac9
    Vendor
    Tendacn
    Product
    Ac9 Firmware

    Exploits

    https://github.com/Lyc-heng/routers/blob/main/routers/stack3.mdhttps://github.com/Lyc-heng/routers/blob/main/routers/stack3.md

    Related CVEs

    CVE-2025-29032 (CVSS 5.9) — Tenda AC9 v15.03.05.19(6318) was discovered to contain a buffer overflow via the formWifiWpsOOB function.…
    CVE-2023-40942 (CVSS 9.8) — Tenda AC9 V3.0BR_V15.03.06.42_multi_TD01 was discovered stack overflow via parameter 'firewall_value' at url /…
    CVE-2022-36233 (CVSS 5.5) — Tenda AC9 V15.03.2.13 is vulnerable to Buffer Overflow via httpd, form_fast_setting_wifi_set. httpd.…
    CVE-2021-31624 (CVSS 8.8) — Buffer Overflow vulnerability in Tenda AC9 V1.0 through V15.03.05.19(6318), and AC9 V3.0 V15.03.06.42_multi, a…
    CVE-2020-22079 (CVSS 9.8) — Stack-based buffer overflow in Tenda AC-10U AC1200 Router US_AC10UV1.0RTL_V15.03.06.48_multi_TDE01 allows remo…
    CVE-2020-20746 (CVSS 7.2) — A stack-based buffer overflow in the httpd server on Tenda AC9 V15.03.06.60_EN allows remote attackers to exec…
    CVE-2020-13389 (CVSS 9.8) — An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V1…
    CVE-2020-13390 (CVSS 9.8) — An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V1…
    CVE-2020-13391 (CVSS 9.8) — An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V1…
    CVE-2020-13392 (CVSS 9.8) — An issue was discovered on Tenda AC6 V1.0 V15.03.05.19_multi_TD01, AC9 V1.0 V15.03.05.19(6318)_CN, AC9 V3.0 V1…

    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