CVE-2026-16347

MikroTik RouterOS contains an API authentication weakness where rate-limiting, account lockout, and source-based restrictions are not effectively enforced. The system can permit repeated failed logins; some versions include a fixed per-connection delay that can be bypassed via concurrent sessions...

CVE-2026-16347 Improper restriction of excessive authentication attempts in MikroTik RouterOS and Cloud Hosted Router

MikroTik RouterOS contains a weakness in its API authentication handling that lacks effective safeguards against excessive login attempts. The system does not enforce meaningful rate-limiting, account lockout, or source-based restrictions, allowing repeated authentication failures to proceed...