Command Injection Vulnerability in Zyxel NAS326 and NAS542 Products
CVE-2023-4473

9.8CRITICAL

Key Information:

Vendor
Zyxel
Status
NAS326 firmware
NAS542 firmware
Vendor
CVE Published:
30 November 2023

Summary

A command injection vulnerability has been discovered in the Zyxel NAS326 and NAS542 web server firmware, enabling unauthenticated attackers to execute arbitrary operating system commands. This security flaw can be exploited by sending specifically crafted URLs to the affected devices, posing significant risks to device integrity and data security. Users are advised to apply the relevant security updates to mitigate potential threats.

Affected Version(s)

NAS326 firmware V5.21(AAZF.14)C0

NAS542 firmware V5.21(ABAG.11)C0

References

https://www.zyxel.com/global/en/support/security-advisori...
vendor-advisory
https://bugprove.com/knowledge-hub/cve-2023-4473-and-cve-...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.