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CVE-2022-30525

CISA KEV

Published May 16, 2022 · Updated April 3, 2026

high
Official Description+

A command injection vulnerability in the CGI program of some Zyxel firewall versions could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

Affected Products

VendorProduct
ZyxelMultiple Firewalls

Patch Status

Patch by 2022-06-06

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-2022-30525.