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CVE-2020-9054

CISA KEV

Published March 25, 2022 · Updated April 3, 2026

high
Official Description+

Multiple Zyxel network-attached storage (NAS) devices contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code.

Affected Products

VendorProduct
ZyxelMultiple Network-Attached Storage (NAS) Devices

Patch Status

Patch by 2022-04-15

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2020-9054.