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    CVE-2026-31255

    A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands.

    Published:Apr 27, 2026
    Last Modified:Apr 29, 2026
    EPS:Apr 27, 2026
    EPSS Score:0.00062
    CVSS Score:5.4

    Affected Products

    Vendor
    Tenda
    Product
    Ac18
    Vendor
    Tenda
    Product
    Ac18 Firmware

    Exploits

    https://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/Tenda_AC18/Tenda_AC18_3th/README.mdhttps://github.com/izxnfirh8148/CVE_REQUESTS_references/blob/main/Tenda_AC18/Tenda_AC18_3th/README.md

    Related CVEs

    CVE-2026-82695 (CVSS 9.3) — A security flaw has been discovered in Tenda AC18 15.03.05.19. Impacted is an unknown function of the file /go…
    CVE-2026-11528 (CVSS 7.4) — A vulnerability was found in Tenda AC18 15.03.05.05. The affected element is the function sub_45304 of the fil…
    CVE-2025-14993 (CVSS 7.4) — A vulnerability was detected in Tenda AC18 15.03.05.05. This affects the function sprintf of the file /goform/…
    CVE-2025-14992 (CVSS 7.4) — A security vulnerability has been detected in Tenda AC18 15.03.05.05. The impacted element is the function str…
    CVE-2025-63835 (CVSS 8.8) — A stack-based buffer overflow vulnerability was discovered in Tenda AC18 v15.03.05.05_multi. The vulnerability…
    CVE-2025-63834 (CVSS 5.4) — A stored cross-site scripting (XSS) vulnerability was discovered in Tenda AC18 v15.03.05.05_multi. The vulnera…
    CVE-2025-11328 (CVSS 7.4) — A vulnerability was detected in Tenda AC18 15.03.05.19(6318). This issue affects some unknown processing of th…
    CVE-2025-11327 (CVSS 7.4) — A security vulnerability has been detected in Tenda AC18 15.03.05.19(6318). This vulnerability affects unknown…
    CVE-2025-11326 (CVSS 7.4) — A weakness has been identified in Tenda AC18 15.03.05.19(6318). This affects an unknown part of the file /gofo…
    CVE-2025-11325 (CVSS 7.4) — A security flaw has been discovered in Tenda AC18 15.03.05.19(6318). Affected by this issue is some unknown fu…

    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