CVE-2020-20214

Routeros vulnerability

CVSS

6.5

EPSS

3.1%

EPSS pct

86th

Exploited

No known

Mikrotik RouterOs 6.44.6 (long-term tree) suffers from an assertion failure vulnerability in the btest process. An authenticated remote attacker can cause a Denial of Service due to an assertion failure via a crafted packet.

Affected vendor

Mikrotik

Affected product

Routeros

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type (CWE)

CWE-617 — Reachable Assertion

Published

2021-05-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2020-20214

Confirm whether Mikrotik Routeros is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-20214.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-20214

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