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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Zyxel / NAS326 firmware<= V5.21(AAZF.15)C0 – <= V5.21(AAZF.15)C0
- Zyxel / NAS542 firmware<= V5.21(ABAG.12)C0 – <= V5.21(ABAG.12)C0