CVE-2023-4397: Buffer Overflow
A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50(W) series firmware version 5.37, and USG20(W)-VPN series firmware version 5.37, could allow an authenticated local attacker with administrator privileges to cause denial-of-service (DoS) conditions by executing the CLI command with crafted strings on an affected device.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2023-4397?
The severity of CVE-2023-4397 is medium.
How can an attacker exploit CVE-2023-4397?
An attacker with administrator privileges can exploit CVE-2023-4397 by causing a denial-of-service or potentially executing arbitrary code.
Which software versions are affected by CVE-2023-4397?
Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50(W) series firmware version 5.37, and USG20(W)-VPN series firmware version 5.37 are affected by CVE-2023-4397.
Is authentication required to exploit CVE-2023-4397?
Yes, authentication is required to exploit CVE-2023-4397.
How to mitigate CVE-2023-4397?
Apply the latest firmware patch provided by Zyxel to mitigate CVE-2023-4397.