VULNERABILITY INTELLIGENCE

CVE-2023-35138

CVSS score9.8 CRITICAL
EPSS probability40.00%
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

A command injection vulnerability in the “show_zysync_server_contents” function 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 HTTP POST request.

Weakness classification

  • security@zyxel.com.tw: CWE-78
  • nvd@nist.gov: CWE-78

Primary references