CVE-2023-5372

High

Description

The post-authentication command injection vulnerability in Zyxel NAS326 firmware versions through V5.21(AAZF.15)C0 and NAS542 firmware versions through V5.21(ABAG.12)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands by sending a crafted query parameter attached to the URL of an affected device’s web management interface.

SeverityHigh

CVSS7.2

Exploit probability—

Product

Zyxel Nas326 Firmware

PublishedJan 30, 2024

First seenJan 30, 2024

Weakness typeCWE-78OS command injection

How to fix

Update

zyxel nas326_firmware5.21\(aazf.16\)c0 or later
zyxel nas542_firmware5.21\(abag.13\)c0 or later

Vendor advisories

zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-post-authentication-command-injection-vulnerability-in-nas-products-01-30-2024

Affected products

Product	Affected versions	Fixed in
zyxel nas326_firmware	v < 5.21\(aazf.16\)c0	5.21\(aazf.16\)c0
zyxel nas542_firmware	v < 5.21\(abag.13\)c0	5.21\(abag.13\)c0

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