August 1, 2026

CVE Watchtower


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CVE-2026-16347NVD

Vulnerability Summary

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.
Severity Level
HIGH(8.8)
Published Date
Jul 28, 2026
Last Modified
Jul 29, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.23%Probability
Root Weakness (CWE)
N/A
CVSS v3.1 Base Metrics
Attack VectorAdjacent
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh