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.
History

Wed, 16 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
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. 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.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-02-27T07:25:00.000Z

Updated: 2026-09-16T20:45:44.203Z

Reserved: 2017-02-23T00:00:00.000Z

Link: CVE-2017-6297

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2017-02-27T07:59:00.347

Modified: 2026-09-16T21:17:05.393

Link: CVE-2017-6297

cve-icon Redhat

No data.