CVE Watch—

CVE-2023-33009

Zyxel Multiple Firewalls Buffer Overflow Vulnerability

CVSS

—

Sin CVSS

EPSS

28.1%

p98

KEV

SÍ

5 jun 2023

Exploit Today

0-100

Publicado: — · Última mod.: —

EPSS · 30d

28.1%EPSS · 30 días28.1%

2026-06-302026-07-16

Ficha del catálogo KEV

Producto

Zyxel / Multiple Firewalls

Vulnerabilidad

Zyxel Multiple Firewalls Buffer Overflow Vulnerability

Añadido a KEV

5 jun 2023

Remediar antes de

26 jun 2023

Uso conocido en ransomware

Descripción resumida

Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the notification function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device.

Acción requerida

Apply updates per vendor instructions.

Notas

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls; https://nvd.nist.gov/vuln/detail/CVE-2023-33009

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