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    CVE-2026-5611

    A vulnerability was found in Belkin F9K1015 1.00.10. This affects the function formCrossBandSwitch of the file /goform/formCrossBandSwitch. Performing a manipulation of the argument webpage results in stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

    Published:Apr 6, 2026
    Last Modified:Apr 30, 2026
    EPS:Apr 6, 2026
    EPSS Score:0.00046
    CVSS Score:8.8

    Affected Products

    Vendor
    Belkin
    Product
    F9k1015
    Vendor
    Belkin
    Product
    F9k1015 Firmware

    Exploits

    https://github.com/Litengzheng/vuldb_new/blob/main/Belkin%20F9K1015/vul_5/README.md

    Related CVEs

    CVE-2026-5629 (CVSS 7.4) — A vulnerability was detected in Belkin F9K1015 1.00.10. The affected element is the function formSetFirewall o…
    CVE-2026-5628 (CVSS 7.4) — A security vulnerability has been detected in Belkin F9K1015 1.00.10. Impacted is the function formSetSystemSe…
    CVE-2026-5614 (CVSS 7.4) — A security flaw has been discovered in Belkin F9K1015 1.00.10. Impacted is the function formSetPassword of the…
    CVE-2026-5613 (CVSS 7.4) — A vulnerability was identified in Belkin F9K1015 1.00.10. This issue affects the function formReboot of the fi…
    CVE-2026-5612 (CVSS 7.4) — A vulnerability was determined in Belkin F9K1015 1.00.10. This vulnerability affects the function formWlEncryp…
    CVE-2026-5610 (CVSS 7.4) — A vulnerability has been found in Belkin F9K1015 1.00.10. Affected by this issue is the function formWISP5G of…
    CVE-2025-11303 (CVSS 2.1) — A vulnerability was detected in Belkin F9K1015 1.00.10. Affected is an unknown function of the file /goform/mp…
    CVE-2025-11302 (CVSS 7.4) — A security vulnerability has been detected in Belkin F9K1015 1.00.10. This impacts an unknown function of the …
    CVE-2025-11301 (CVSS 7.4) — A weakness has been identified in Belkin F9K1015 1.00.10. This affects an unknown function of the file /goform…
    CVE-2025-11300 (CVSS 7.4) — A security flaw has been discovered in Belkin F9K1015 1.00.10. The impacted element is an unknown function of …

    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