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MikroTik RouterOS and Cloud Hosted Router

CVE-2026-16347

July 28, 2026 · CISA (US-CERT) · Severity: CRITICAL

View CSAF Summary Successful exploitation of this vulnerability could allow attackers to rapidly guess passwords and gain unauthorized system access.

Key Takeaways

  • View CSAF Summary Successful exploitation of this vulnerability could allow attackers to rapidly guess passwords and.
  • The following versions of MikroTik RouterOS and Cloud Hosted Router are affected: RouterOS vers:all/*.
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