CVE-2018-14847
MikroTik Router OS Directory Traversal Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 1 June 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 95.98% probability · 100th percentile
- Public exploits
- 1 in Exploit-DB · first 10 October 2018
- CISA KEV
- Listed 1 December 2021 · due 1 June 2022
- Weakness
- CWE-22
- Affected
- mikrotik/routeros
- Source
- cve@mitre.org
EPSS 96.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2018-14847
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://github.com/BasuCert/WinboxPoCExploit, Mitigation, Third Party Advisory
- https://github.com/BigNerd95/WinboxExploitExploit, Mitigation, Third Party Advisory
- https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdfBroken Link, Exploit, Third Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/bythewayExploit, Third Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847Exploit, Third Party Advisory
- https://mikrotik.com/supportsec/winbox-vulnerabilityVendor 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://github.com/BasuCert/WinboxPoCExploit, Mitigation, Third Party Advisory
- https://github.com/BigNerd95/WinboxExploitExploit, Mitigation, Third Party Advisory
- https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdfBroken Link, Exploit, Third Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/bythewayExploit, Third Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847Exploit, Third Party 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-2018-14847US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.