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    CVE-2022-40868

    Tenda W20E router V15.11.0.6 (US_W20EV4.0br_V15.11.0.6(1068_1546_841)_CN_TDC) contains a stack overflow vulnerability in the function formDelDhcpRule with the request /goform/delDhcpRules/

    Published:Sep 23, 2022
    Last Modified:May 22, 2025
    EPS:Sep 23, 2022
    EPSS Score:0.0018
    CVSS Score:9.8

    Affected Products

    Vendor
    Tenda
    Product
    W20e
    Vendor
    Tenda
    Product
    W20e Firmware

    Exploits

    https://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formDelDhcpRule.mdhttps://github.com/CPSeek/Router-vuls/blob/main/Tenda/W20E/formDelDhcpRule.md

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-67965 (CVSS 9.8) — An issue in Tneda W20E v.16.01.0.6(2782) allows a remote attacker to execute arbitrary code via the url_need_l…
    CVE-2026-67967 (CVSS 9.8) — Buffer Overflow vulnerability in Tenda W20E V16.01.0.6(2782) allows an attacker to execute arbitrary code. Thi…
    CVE-2026-19824 (CVSS 7.4) — A weakness has been identified in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. The affected element is the func…
    CVE-2026-19823 (CVSS 7.4) — A security flaw has been discovered in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. Impacted is the function fo…
    CVE-2026-19822 (CVSS 7.4) — A vulnerability was identified in Tenda W20E 15.11.0.6(1068_1546_841)_CN_TDC. This issue affects the function …
    CVE-2026-36822 (CVSS 7.5) — Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the ma…
    CVE-2026-36819 (CVSS 7.5) — Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the bi…
    CVE-2026-36818 (CVSS 7.5) — Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the we…
    CVE-2026-36823 (CVSS 7.5) — Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the we…
    CVE-2026-36820 (CVSS 7.5) — Shenzhen Tenda Technology Co., Ltd Tenda W20E v15.11.0.6 was discovered to contain a buffer overflow in the we…

    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