CVE-2023-6399 Information

Description

A format string vulnerability in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1 USG FLEX series firmware versions from 4.50 through 5.37 Patch 1 USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1 and USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1 could allow an authenticated IPSec VPN user to cause DoS conditions against the “deviceid” daemon by sending a crafted hostname to an affected device if it has the “Device Insight” feature enabled.

CVSS Vector

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-aps-02-20-2024

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.7