# CVE-2018-14847: MikroTik Router OS Directory Traversal Vulnerability

> CVE-2018-14847: MikroTik Router OS Directory Traversal Vulnerability. CVSS 9.1 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2018-14847
Last updated: 2025-10-21T23:45:49Z

- Published: 2018-08-02 07:00 UTC · Updated: 2025-10-21 23:45 UTC · Assigner: mitre
- CVSS: 9.1 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS: 96.0%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2021-12-01, federal due date 2022-06-01, ransomware use: Unknown

## Description

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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- MikroTik: RouterOS

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2018-14847)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2018-14847)
- [https://github.com/BasuCert/WinboxPoC](https://github.com/BasuCert/WinboxPoC)
- [https://github.com/BigNerd95/WinboxExploit](https://github.com/BigNerd95/WinboxExploit)
- [https://github.com/tenable/routeros/blob/master/bug\_hunting\_in\_routeros\_derbycon\_2018.pdf](https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdf)
- [https://github.com/tenable/routeros/tree/master/poc/bytheway](https://github.com/tenable/routeros/tree/master/poc/bytheway)
- [https://github.com/tenable/routeros/tree/master/poc/cve\_2018\_14847](https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847)
- [https://mikrotik.com/supportsec/winbox-vulnerability](https://mikrotik.com/supportsec/winbox-vulnerability)
- [https://n0p.me/winbox-bug-dissection/](https://n0p.me/winbox-bug-dissection/)
- [https://www.exploit-db.com/exploits/45578/](https://www.exploit-db.com/exploits/45578/)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2018-14847 · Markdown: https://rewindex.com/cve/CVE-2018-14847.md · JSON: https://rewindex.com/api/v1/cves/CVE-2018-14847 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:45:43.357Z