Is CVE-2026-109109 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-109109?

CVE-2026-109109 has a CVSS v3 severity of CRITICAL (10).

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CVE-2026-109109

Description

A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability affects the function strcpy of the file /cgi-bin/ExportAllSettings.cgi of the component Settings Export CGI. Performing a manipulation of the argument HTTP_COOKIE/X-Cmd results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.