CVE-2023-27988
High
Description
The post-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.13)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device remotely.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Zyxel Nas326 Firmware
PublishedMay 30, 2023
First seenMay 30, 2023
Weakness typeCWE-78OS command injection
How to fix
Update
- zyxel nas326_firmware5.21\(aazf.13\)c0 or later
- zyxel nas540_firmware5.21\(aatb.10\)c0 or later
- zyxel nas542_firmware5.21\(abag.10\)c0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| zyxel nas326_firmware | v < 5.21\(aazf.13\)c0 | 5.21\(aazf.13\)c0 |
| zyxel nas540_firmware | v < 5.21\(aatb.10\)c0 | 5.21\(aatb.10\)c0 |
| zyxel nas542_firmware | v < 5.21\(abag.10\)c0 | 5.21\(abag.10\)c0 |
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