CVE-2023-4397

MediumCVSS 4.4/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 4.4/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
Zyxel	ATP series firmware	5.37
Zyxel	USG FLEX series firmware	5.37
Zyxel	USG FLEX 50(W) series firmware	5.37
Zyxel	USG20(W)-VPN series firmware	5.37

References

Timeline

Published: Nov 28, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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