ZyXEL NAS540 firmware

• CVE-2023-27992 Critical 9.8 Exploited The pre-authentication command injection vulnerability in the Zyxel NAS326 firmware versions prior to V5.21(AAZF.14)C0, NAS540 firmware versions prior to V5.21(AATB.11)C0, and NAS542 firmware versions 82.3%