Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 96.1%; technical severity is CVSS 9.1.
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.
Who should care
- Teams operating RouterOS
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether RouterOS is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CWE
- CWE-22
- Affected versions
- MikroTik RouterOS (End Including: 6.42)
- Published
- 2 August 2018
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 96.1%
- Signal calculated at 84
External references
- Government advisory from www.cisa.gov
- Mitigation guidance from github.com
- Mitigation guidance from github.com
- Exploit information from github.com
- Exploit information from github.com
- Exploit information from github.com
- Vendor advisory from mikrotik.com
- Exploit information from n0p.me
- Exploit information from www.exploit-db.com