AUGUST 4, 2026
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Case File

CVE-2023-4474

CRITICAL · CVSS 9.8 EPSS 29.74%

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 29.7% probability of exploitation in the next 30 days. Exploitation may require the attacker to be authenticated.

CVE
CVE-2023-4474
Severity
CRITICAL
CVSS
9.8
EPSS
29.74%

Original NVD Description

The improper neutralization of special elements in the WSGI 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)