VULNERABILITY INTELLIGENCE

CVE-2023-6397

CVSS score6.5 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2024-02-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A null pointer dereference vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 and USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 could allow a LAN-based attacker to cause denial-of-service (DoS) conditions by downloading a crafted RAR compressed file onto a LAN-side host if the firewall has the “Anti-Malware” feature enabled.

Weakness classification

  • security@zyxel.com.tw: CWE-476

Primary references