Mikrotik Cloud Hosted Router vulnerabilities
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Published CVEs affecting Mikrotik Cloud Hosted Router: 1 record(s), with affected versions and fixes.
CVE-2026-16347
High · 8.8
CWE-307 Jul 28, 2026
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 without defensive response. In some versions, a fixed per-connection delay is present, but it can be bypassed through concurrent sessions, resulting in continued high-volume attempts. This deficiency increases the risk that an attacker could eventually obtain valid credentials and gain unauthorized access to administrative services.