CVE-2023-4473
Critical
Description
A command injection vulnerability in the web server 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 URL to a vulnerable device.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Zyxel Nas326 Firmware
PublishedNov 30, 2023
First seenNov 30, 2023
Weakness typeCWE-78OS command injection
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zyxel nas326_firmware | v ≤ 5.21\(aazf.14\)c0 | — |
| zyxel nas542_firmware | v ≤ 5.21\(abag.11\)c0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.