Vulnerabilidad · Publicado 17/08/2026
Se identificó una vulnerabilidad de desbordamiento de búfer en la pila (stack-based buffer overflow) en los routers Wavlink WN531P3 y WN535M1 versión V250922. La falla reside en la función strcpy del componente Export Pingortrace CGI (/etc/lighttpd/www/cgi-bin/export_pingortrace.cgi) y puede ser explotada remotamente manipulando el parámetro HTTP_COOKIE. El exploit ha sido divulgado públicamente, aumentando el riesgo para infraestructuras de telecomunicaciones y empresas en LATAM que utilizan estos equipos.
A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function strcpy of the file /etc/lighttpd/www/cgi-bin/export_pingortrace.cgi of the component Export Pingortrace CGI. Executing a manipulation of the argument HTTP_COOKIE can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
Score: 10/10 — Severidad: CRITICAL — Estado NIST: Received
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-119, CWE-121
Publicado en NIST NVD.