CVE-2026-41927
WDR201A WiFi Extender Stack-Based Buffer Overflow via firewall.cgi
Vexday Risk Score
41Atención
Decisión SSVC (CISA)
Attend
PoC disponible → seguir de cerca
CVSS 8.3EPSS 0.4%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Ciclo de vida
04 may 2026Publicada en NVD
Recomendación: Planificar corrección próxima — ya existe PoC pública.
WDR201A WiFi Extender (HW V2.1, FW LFMZX28040922V1.02) contains a stack-based buffer overflow vulnerability in the firewall.cgi and makeRequest.cgi binaries that allows unauthenticated attackers to overwrite the saved return address by sending a POST request with a Content-Length header exceeding 512 bytes. Attackers can exploit insufficient length validation in the fgets() call to achieve arbitrary code execution through return-oriented programming or return-to-libc techniques.
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Productos afectados
Shenzhen Yipu Commercial and Trading Co., Ltd · WDR201A WiFi ExtenderPoCs públicas encontradas — 1
cve_referencemstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-assisted-research/cybersecurity/cve/2026/05/04/Teaching_the_Machine_Where_to_Look.htmlno verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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Hablar con TrueHacking →Referencias
https://mstreet97.github.io/security-research/iot/vulnerability-disclosure/ai-assisted-research/cybersecurity/cve/2026/05/04/Teaching_the_Machine_Where_to_Look.htmlhttps://www.made-in-china.com/showroom/yeapook/#:~:text=Established%20in%202015.%2CDistrict%2C%20Shenzhen%2C%20Guangdong%2C%20Chinahttps://www.vulncheck.com/advisories/wdr201a-wifi-extender-stack-based-buffer-overflow-via-firewall-cgi