CVE-2017-6297
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Description
The L2TP Client in MikroTik RouterOS versions 6.38.3 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 — exploit probability
- 1% (percentile: 55) as of 2 November 2026
- CWE
- CWE-311
Affected products
mikrotik: routeros
References
- https://blog.milne.it/2017/02/24/mikrotik-routeros-security-vulnerability-l2tp-… ExploitThird Party Advisory
- https://blog.milne.it/2017/02/24/mikrotik-routeros-security-vulnerability-l2tp-… ExploitThird Party Advisory
- http://www.securityfocus.com/bid/96447 Third Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/96447 Third Party AdvisoryVDB Entry