CVE-2022-38547

State: Published
Severity: 7.2 High
Published: Feb 7, 2023
Updated: Mar 25, 2025
Reserved: Aug 22, 2022

Description

A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator privileges to execute OS commands.

Scores

CVSS	Score	Vector	Source
3.1	7.2 High	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	Zyxel

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Affected Products

Product	Versions
ZyWALL/USG series firmwareZyxel	4.20 through 4.72Affected
VPN series firmwareZyxel	4.30 through 5.32Affected
USG FLEX series firmwareZyxel	4.50 through 5.32Affected
ATP series firmwareZyxel	4.32 through 5.32Affected

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-rce-in-firewalls

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