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    CVE-2026-0839

    A weakness has been identified in UTT 进取 520W 1.7.7-180627. Affected is the function strcpy of the file /goform/APSecurity. Executing a manipulation of the argument wepkey1 can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

    Published:Jan 11, 2026
    Last Modified:Apr 18, 2026
    EPS:Jan 11, 2026
    EPSS Score:0.00037
    CVSS Score:8.8

    Affected Products

    Vendor
    Utt
    Product
    520w
    Vendor
    Utt
    Product
    520w Firmware

    Exploits

    https://github.com/GUOTINGTING2297/cve/blob/main/1234/29.md

    Related CVEs

    CVE-2026-31065 (CVSS 4.5) — UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the addCommand parameter of…
    CVE-2026-31067 (CVSS 6.8) — A remote command execution (RCE) vulnerability in the /goform/formReleaseConnect component of UTT Aggressive 5…
    CVE-2026-31062 (CVSS 4.5) — UTT Aggressive 520W v3v1.7.7-180627 was discovered to contain a buffer overflow in the filename parameter of t…
    CVE-2026-31059 (CVSS 9.8) — A remote command execution (RCE) vulnerability in the /goform/formDia component of UTT Aggressive HiPER 520W v…
    CVE-2026-2071 (CVSS 7.4) — A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file…
    CVE-2026-2070 (CVSS 7.4) — A vulnerability has been found in UTT 进取 520W 1.7.7-180627. The affected element is the function strcpy of the…
    CVE-2026-2068 (CVSS 7.4) — A vulnerability was detected in UTT 进取 520W 1.7.7-180627. This issue affects the function strcpy of the file /…
    CVE-2026-2067 (CVSS 7.4) — A security vulnerability has been detected in UTT 进取 520W 1.7.7-180627. This vulnerability affects the functio…
    CVE-2026-2066 (CVSS 7.4) — A weakness has been identified in UTT 进取 520W 1.7.7-180627. This affects the function strcpy of the file /gofo…
    CVE-2026-1140 (CVSS 7.4) — A vulnerability was found in UTT 进取 520W 1.7.7-180627. This issue affects the function strcpy of the file /gof…

    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