Command Injection Vulnerability in Zyxel NAS Devices
CVE-2023-37927

8.8HIGH

Key Information:

Vendor
Zyxel
Status
Nas326 Firmware
Nas542 Firmware
Vendor
CVE Published:
30 November 2023

Summary

The Zyxel NAS326 and NAS542 devices are vulnerable due to improper handling of special elements in their CGI program. This flaw permits authenticated attackers to execute arbitrary operating system commands by crafting specially designed URLs. If exploited, this weakness could compromise the integrity of the affected systems, enabling unauthorized access and potential further attacks on the network. Users of these devices are urged to update their firmware to mitigate risks.

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-2023-37927-and-cve...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.