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