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    CVE-2026-67822

    Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform/wifiSSIDset endpoint. The function formwrlSSIDset uses sprintf to copy user-controlled 'GO' and 'index' parameters into a 64-byte stack buffer without length restriction, leading to stack overflow.

    Published:Jul 31, 2026
    Last Modified:Aug 3, 2026
    EPS:Jul 31, 2026
    EPSS Score:0.00295
    CVSS Score:9.8

    Affected Products

    Vendor
    Tenda
    Product
    W6 S

    Exploits

    https://github.com/Hunt-Benito/go-without-bounds-cve-2026-67822-stack-overflow-in-tenda-w6-s-wifissidset

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    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