AUGUST 4, 2026
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Case File

CVE-2023-4397

MEDIUM · CVSS 4.4 EPSS 0.23%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-11-28 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.4. It may lead to a denial-of-service condition.

CVE
CVE-2023-4397
Severity
MEDIUM
CVSS
4.4
EPSS
0.23%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)