CVE-2023-27992
Zyxel Multiple NAS Devices Command Injection Vulnerability
Zyxel · Multiple Network-Attached Storage (NAS) Devices
Vulnerability details
Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability that could allow an unauthenticated attacker to execute commands remotely via a crafted HTTP request.
Added to CISA KEV: 2023-06-23
Ransomware campaign use: Unknown
CISA due date: 2023-07-14
Defensive guidance from CISA
Apply updates per vendor instructions.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC