VULNERABILITY INTELLIGENCE

CVE-2023-4474

CVSS score9.8 CRITICAL
EPSS probability29.74%
CISA KEVNot currently listed
Published2023-11-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • security@zyxel.com.tw: CWE-78

Primary references