CISA KEV · Known exploitedCritical

CVE-2018-14847

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.

CVSS
9.1
EPSS
96.1%
99.9% percentile
CISA KEV
Listed
Published
2018.08.02
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability96.1%
Technical severityCVSS 9.1

Vulnerability overview

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 product and versions

Product
MikroTik RouterOS
Affected versions
<= 6.42
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions.

Due date: 2022.06.01
  1. 1
    Identify

    Confirm that MikroTik RouterOS and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
CWE-22
KEV added
2021.12.01
Ransomware use
미확인
CVE-2018-14847 — MikroTik RouterOS | SECUFOCUS NOW