CVE-2017-6297

Name: CVE-2017-6297
Creator: NVD / NIST
Published: 2017-02-27T07:59:00.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.74%

Last modified Jun 17, 2026

CVE-2017-6297 is a vulnerability of currently unknown severity. The L2TP Client in MikroTik RouterOS versions 6.83.3 and 6.37.4 does not enable IPsec encryption after a reboot, which allows man-in-the-middle attackers to view transmitted data unencrypted and gain access to networks on the L2TP server by monitoring the packets for the transmitted data and obtaining the L2TP secret.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

The L2TP Client in MikroTik RouterOS versions 6.83.3 and 6.37.4 does not enable IPsec encryption after a reboot, which allows man-in-the-middle attackers to view transmitted data unencrypted and gain access to networks on the L2TP server by monitoring the packets for the transmitted data and obtaining the L2TP secret.

Metrics

EPSS Probability

0.74%

49.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-311

Affected Software

Vendor	Product	Versions
Mikrotik	Routeros	6.37.4
Mikrotik	Routeros	6.83.3

References

http://www.securityfocus.com/bid/96447Third Party Advisory, VDB Entry
https://blog.milne.it/2017/02/24/mikrotik-routeros-security-vulnerability-l2tp-tunnel-unencrypted-cve-2017-6297/Exploit, Third Party Advisory
http://www.securityfocus.com/bid/96447Third Party Advisory, VDB Entry
https://blog.milne.it/2017/02/24/mikrotik-routeros-security-vulnerability-l2tp-tunnel-unencrypted-cve-2017-6297/Exploit, Third Party Advisory

Timeline

Published: Feb 27, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-6297?

How severe is CVE-2017-6297?

Severity scoring for CVE-2017-6297 is pending analysis. The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.

How do I fix CVE-2017-6297?

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.

Are you affected by CVE-2017-6297?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST