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Vulnerabilities

Vulnerability · CVE-2018-14847

MikroTik Router OS Directory Traversal Vulnerability

Published Aug 2, 2018 · catalog updated Jun 16, 2026 · MikroTik RouterOS

Patch now

CVE-2018-14847 is in the CISA known-exploited catalog, due Jun 1, 2022. Confirm MikroTik RouterOS against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Critical9.1
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
95.98%
Remediation
Remediation guidance
Affected products
cpe mikrotik/routeros · vendor MikroTik RouterOS

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. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe mikrotik/routerosversion unspecified
  • vendor MikroTik RouterOSversion unspecified

How to fix CVE-2018-14847

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2018-14847 is in the CISA known-exploited catalog, due Jun 1, 2022. Confirm MikroTik RouterOS against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-22: Path Traversal. EPSS 95.98%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 2, 2018 · Catalog

    Detected

    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.

  2. Dec 1, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jun 1, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-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.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2018-14847

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2018-14847

    30-day exploitation probability 96.0%

    first.org
  • Exploit DatabasePublic exploit reference45578

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit ModulesPublic exploit moduleauxiliary_gather/mikrotik_winbox_fileread

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-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.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-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.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.