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    CVE-2026-6559

    A weakness has been identified in Wavlink WL-WN579A3 220323. This affects the function sub_401F80 of the file /cgi-bin/login.cgi. This manipulation of the argument Hostname causes cross site scripting. Remote exploitation of the attack is possible. Upgrading the affected component is recommended. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

    Published:Apr 19, 2026
    Last Modified:Apr 22, 2026
    EPS:Apr 19, 2026
    EPSS Score:0.00033
    CVSS Score:4.3

    Affected Products

    Vendor
    Wavlink
    Product
    Wl-wn579a3
    Vendor
    Wavlink
    Product
    Wl-wn579a3 Firmware

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-2530 (CVSS 2.1) — A weakness has been identified in Wavlink WL-WN579A3 up to 20210219. This affects the function AddMac of the f…
    CVE-2026-2529 (CVSS 5.3) — A security flaw has been discovered in Wavlink WL-WN579A3 up to 20210219. Affected by this issue is the functi…
    CVE-2026-2528 (CVSS 2.1) — A vulnerability was identified in Wavlink WL-WN579A3 up to 20210219. Affected by this vulnerability is the fun…
    CVE-2026-2527 (CVSS 2.1) — A vulnerability was determined in Wavlink WL-WN579A3 up to 20210219. Affected is an unknown function of the fi…
    CVE-2026-2526 (CVSS 2.1) — A vulnerability was found in Wavlink WL-WN579A3 up to 20210219. This impacts the function multi_ssid of the fi…
    CVE-2025-44880 (CVSS 9.8) — A command injection vulnerability in the component /cgi-bin/adm.cgi of Wavlink WL-WN579A3 v1.0 allows attacker…
    CVE-2025-44882 (CVSS 9.8) — A command injection vulnerability in the component /cgi-bin/firewall.cgi of Wavlink WL-WN579A3 v1.0 allows att…
    CVE-2025-44881 (CVSS 9.8) — A command injection vulnerability in the component /cgi-bin/qos.cgi of Wavlink WL-WN579A3 v1.0 allows attacker…

    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