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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zyxel | NAS326 firmware | <= V5.21(AAZF.15)C0 | — |
| Zyxel | NAS542 firmware | <= V5.21(ABAG.12)C0 | — |