Zyxel Multiple NAS Devices Command Injection Vulnerability

CRITICO 9.8EXPLOITED (CISA KEV)CVE-2023-27992 · Published 19/06/2023 · updated 17/06/2026

Zyxel Multiple NAS Devices Command Injection Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 23/06/2023. Patch affected systems as an emergency.

In breve

CVE-2023-27992 è una vulnerabilità CRITICO (CVSS 9.8).
Sfruttata attivamente: la CISA l'ha aggiunta al catalogo KEV il 23/06/2023.
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 82.3%, superiore al 99.7% delle vulnerabilità.
Nessuna versione corretta ancora nota: segui l'avviso del produttore nei riferimenti.

Package	Affected versions	Patched versions
Multiple Network-Attached Storage (NAS) Devices Zyxel	Versions not published yet (product named by CISA KEV)

Description

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 prior to V5.21(ABAG.11)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands remotely by sending a crafted HTTP request.

References

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