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LOW

CVE-2019-3981

CVSS v3

3.7

LOW

EPSS Score

1.1 %

exploit probability, as of 2026-10-07

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

MikroTik Winbox 3.20 and below is vulnerable to man in the middle attacks. A man in the middle can downgrade the client's authentication protocol and recover the user's username and MD5 hashed password.

Technical details

Published
2020-01-14

Frequently asked questions

What is CVE-2019-3981?

MikroTik Winbox 3.20 and below is vulnerable to man in the middle attacks. A man in the middle can downgrade the client's authentication protocol and recover the user's username and MD5 hashed password.

Is CVE-2019-3981 actively exploited?

Active exploitation of CVE-2019-3981 has not been confirmed. Its EPSS score was 1.1% on 2026-10-07, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-3981?

CVE-2019-3981 has a CVSS v3 base score of 3.7 (LOW severity).

Is CVE-2019-3981 affecting your environment?

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