5.9

CVE-2017-6297: mikrotik routeros Missing Encryption of Sensitive Data

CVSS: 5.9v3.0MediumModified
Published 27-02-2017Last modified 16-09-2026
Open JSON

Vulnerability summary

CVE-2017-6297 is a medium (CVSS 5.9) Missing Encryption of Sensitive Data vulnerability in mikrotik routeros. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 54.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.0 (NVD)
EPSS score
0.74%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 27-02-2017
    PublishedVulnerability first disclosed.
  2. 16-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

-0.01 pp

From 0.76% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (blog.milne.it)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Mikrotik1 product

1 vendor · 1 product

References

2 links