Path Traversal in Mikrotik Routeros

CVE-2018-14847

MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated attackers to write arbitrary files due to a directory traversal vulnerability in the WinBox interface.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.961 (99.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-14847?
CVE-2018-14847 is a critical-severity vulnerability in Mikrotik Routeros, classified under Path Traversal. CVSS score: 9.1/10. Published 2018-08-02.
How severe is CVE-2018-14847?
Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2018-14847 known to be exploited?
Yes. CVE-2018-14847 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-12-01), indicating it is being actively exploited. 79 public proof-of-concept repositories are indexed.