CVEs / CVE-2018-14847
CVE-2018-14847: MikroTik Router OS Directory Traversal Vulnerability
- Known exploited in the CISA KEV catalog since 1 Dec 2021
- critical 9.1 CVSS 3.1 (NVD)
- EPSS 95.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 1 Dec 2021 |
|---|---|
| Due date for US federal agencies | 1 Jun 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 9.1 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NScored by NVD |
|---|---|
| Weakness | CWE-22 |
References
- CVE-2018-14847 on NVD
- CVE-2018-14847 in the CISA KEV catalog
- https://github.com/BasuCert/WinboxPoC Exploit, Mitigation, Third Party Advisory
- https://github.com/BigNerd95/WinboxExploit Exploit, Mitigation, Third Party Advisory
- https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdf Broken Link, Exploit, Third Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/bytheway Exploit, Third Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847 Exploit, Third Party Advisory
- https://mikrotik.com/supportsec/winbox-vulnerability Vendor Advisory
- https://n0p.me/winbox-bug-dissection/ Exploit, Third Party Advisory
- https://www.exploit-db.com/exploits/45578/ Exploit, Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14847 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.