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Fencer Intel
critical 9.1

CVE-2018-14847 kev in the critical feed json

MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated attackers to write…

published 8y ago modified 4mo ago also EUVD-2018-6729

cvss
9.1
version 3.1, CNA
cisa kev
Exploited
added 2021-12-01
epss
96.0%
EPSS 96.0% chance of exploitation in 30 days, percentile 99.8%
public exploits
2
Metasploit and Exploit-DB

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

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Timeline

  1. First public exploit (Metasploit auxiliary/gather/mikrotik_winbox_fileread)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4y ago
Patch by
2022-06-01 (4y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
MikroTik, RouterOS
CISA name
MikroTik Router OS Directory Traversal Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

95.98% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit auxiliary/gather/mikrotik_winbox_fileread Mikrotik Winbox Arbitrary File Read metasploit auxiliary, normal rank, 2018-08-02
  • EDB-45578 MicroTik RouterOS < 6.43rc3 - Remote Root remote, 2018-10-10
  • github.com https://github.com/BigNerd95/WinboxExploit referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdf referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/BasuCert/WinboxPoC referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847 referenced PoC, tagged "exploit" by a source, unverified
  • n0p.me https://n0p.me/winbox-bug-dissection/ referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/tenable/routeros/tree/master/poc/bytheway referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.