CVE-2023-4474
Critical
Description
The improper neutralization of special elements in the WSGI 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 | — |
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