CVE-2023-28771

Medium

Open

KEV

TLP:CLEAR

Zyxel Multiple Firewalls OS Command Injection Vulnerability

NVD CVE.org

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Description

Zyxel — Multiple Firewalls — Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device.

Details

EPSS Score ⓘ: 99.28%

99.9th percentile
Confidence: 100%
CISA KEV
Date Added: May 31, 2023
Patch Due: Jun 21, 2023
Required Action: Apply updates per vendor instructions.

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