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MikroTik RouterOS and Cloud Hosted Router
CVE-2026-16347
July 28, 2026 · CISA (US-CERT) · Severity: HIGH
CISA issued an advisory for CVE-2026-16347 affecting MikroTik RouterOS and Cloud Hosted Router, a high-severity vulnerability allowing attackers to brute-force passwords and gain unauthorized access.
Key Takeaways
- CVE-2026-16347 affects MikroTik RouterOS and Cloud Hosted Router with a CVSS score of 8.8
- The vulnerability allows attackers to rapidly guess passwords and gain unauthorized system access
- All versions of RouterOS and Cloud Hosted Router are affected by this excessive authentication flaw