AUGUST 4, 2026
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Case File

CVE-2023-4473

CRITICAL · CVSS 9.8 EPSS 41.35%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-11-30 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Its EPSS score suggests a 41.3% probability of exploitation in the next 30 days. Exploitation may require the attacker to be authenticated.

CVE
CVE-2023-4473
Severity
CRITICAL
CVSS
9.8
EPSS
41.35%

Original NVD Description

A command injection vulnerability in the web server of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.

Related CVEs

Other vulnerabilities affecting the same vendor(s)