SEPTEMBER 20, 2026
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Case File

CVE-2026-16347

HIGH · CVSS 8.8 EPSS 0.27%

Source: NVD + CISA KEV + EPSS · Published 2026-07-28 · Last synced 2026-08-27

CyberRota Analysis

AI-Generated

MikroTik RouterOS is vulnerable due to inadequate API authentication handling, which fails to implement effective rate-limiting and account lockout mechanisms. This weakness allows attackers to execute high-volume login attempts, potentially leading to unauthorized access to administrative services. Organizations using MikroTik RouterOS should prioritize addressing this vulnerability to mitigate the risk of credential compromise.

CVE
CVE-2026-16347
Severity
HIGH
CVSS
8.8
EPSS
0.27%

Original NVD Description

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.