CVE Watch24 ago 2026

CVE-2026-76071

Netis NC63 firmware through V3.0.0.3327 contains a stack-based buffer overflow vulnerability that allows unauthenticated remote attackers to

CVSS

9.8

Crítico

EPSS

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KEV

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Exploit Today

0-100

Publicado: 24 ago 2026 · Última mod.: 24 ago 2026 · CWE-121

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Netis NC63 firmware through V3.0.0.3327 contains a stack-based buffer overflow vulnerability that allows unauthenticated remote attackers to overwrite saved stack state by supplying an oversized destHost parameter to the ipFilterList=mod action in netis.cgi. Attackers can exploit widthless sscanf conversions that copy user-supplied input into fixed-size stack buffers before authentication is verified, achieving remote code execution as root due to the Boa web server executing the CGI environment with root privileges.

Referencias oficiales

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