CVE-2019-3981
LOWCVSS 3.7/10EPSS 1.14%
Last modified
CVE-2019-3981 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. 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.. EPSS estimates a 1.14% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mikrotik | Routeros | < 6.43 |
| Mikrotik | Winbox | < 3.20 |
References
- https://www.tenable.com/security/research/tra-2020-01Exploit, Third Party Advisory
- https://www.tenable.com/security/research/tra-2020-01Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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.
How severe is CVE-2019-3981?
CVE-2019-3981 has a CVSS score of 3.7/10 (LOW severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.
How do I fix CVE-2019-3981?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-3981?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST