CVE-2026-7748
Totolink N300RH POST Request cstecgi.cgi setUpgradeFW buffer overflow
Vexday Risk Score
41Atención
Decisión SSVC (CISA)
Attend
PoC disponible → seguir de cerca
CVSS 8.7EPSS 0.5%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Ciclo de vida
04 may 2026Publicada en NVD
Recomendación: Planificar corrección próxima — ya existe PoC pública.
A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setUpgradeFW of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Executing a manipulation of the argument FileName can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Productos afectados
Totolink · N300RHPoCs públicas encontradas — 1
cve_referencelavender-bicycle-a5a.notion.site/TOTOLINK-N300RH-setUpgradeFW-34553a41781f80abb1d1c627d7ff4329?pvs=73no verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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