CVE-2026-109109: Wavlink Wl-WN530BE1-A

Critical severity, CVSS 10.0. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

Published 2026-10-13. Last modified 2026-10-14.