CRITICAL KEV
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
Published Aug 2, 2018 ·Due Jun 1, 2022
9.1
CRITICALCVSS 3.1
EPSS 96.09%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.1 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact None
No CVSS v3.0 score for this CVE.
6.4 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None
Listed in CISA KEV KEV
Date Added
Dec 1, 2021
Patch Due
Jun 1, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Feb 4, 2025 · SSVC 2.0.3
96.09% 0.96087
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.96087
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 96.09% (0.96087) | 99.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 96.09% (0.96087) | 99.87th | v5 (v2026.06.15) |
| May 15, 2025 | 92.86% (0.92865) | 99.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 89.41% (0.89410) | 99.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.37% (0.97374) | 99.93th | v3 (v2023.03.01) |
| Jun 11, 2024 | 97.46% (0.97460) | 99.96th | v3 (v2023.03.01) |
| May 17, 2024 | 97.45% (0.97453) | 99.95th | v3 (v2023.03.01) |
| Mar 21, 2024 | 97.50% (0.97496) | 99.97th | v3 (v2023.03.01) |
| Feb 26, 2024 | 97.48% (0.97484) | 99.97th | v3 (v2023.03.01) |
| Feb 2, 2024 | 97.48% (0.97477) | 99.96th | v3 (v2023.03.01) |
| Jan 14, 2024 | 97.49% (0.97488) | 99.97th | v3 (v2023.03.01) |
| Dec 24, 2023 | 97.47% (0.97473) | 99.96th | v3 (v2023.03.01) |
| Dec 2, 2023 | 97.48% (0.97483) | 99.97th | v3 (v2023.03.01) |
| Nov 11, 2023 | 97.48% (0.97477) | 99.96th | v3 (v2023.03.01) |
| Jul 12, 2023 | 97.47% (0.97466) | 99.93th | v3 (v2023.03.01) |
| Jul 8, 2023 | 97.48% (0.97481) | 99.95th | v3 (v2023.03.01) |
| Jun 24, 2023 | 97.49% (0.97492) | 99.95th | v3 (v2023.03.01) |
| May 8, 2023 | 97.51% (0.97510) | 99.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.48% (0.97476) | 99.93th | v3 (v2023.03.01) |
| Mar 6, 2023 | 93.46% (0.93463) | 99.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 93.46% (0.93463) | 99.92th | v2 (v2022.01.01) |
| Feb 3, 2022 | 41.32% (0.41318) | 98.26th | v1 |
| Sep 1, 2021 | 41.32% (0.41318) | 99.28th | v1 |
| Apr 14, 2021 | 41.32% (0.41318) | 0.00th | v1 |
Weaknesses (1)
References (9)
- https://github.com/BasuCert/WinboxPoC ExploitMitigationThird Party Advisory
- https://github.com/BigNerd95/WinboxExploit ExploitMitigationThird Party Advisory
- https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdf Broken LinkExploitThird Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/bytheway ExploitThird Party Advisory
- https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847 ExploitThird Party Advisory
- https://mikrotik.com/supportsec/winbox-vulnerability Vendor Advisory
- https://n0p.me/winbox-bug-dissection/ ExploitThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14847 government-resourceUS Government Resource
- https://www.exploit-db.com/exploits/45578/ exploitThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| https://github.com/BasuCert/WinboxPoC | ExploitMitigationThird Party Advisory | |
| https://github.com/BigNerd95/WinboxExploit | ExploitMitigationThird Party Advisory | |
| https://github.com/tenable/routeros/blob/master/bug_hunting_in_routeros_derbycon_2018.pdf | Broken LinkExploitThird Party Advisory | |
| https://github.com/tenable/routeros/tree/master/poc/bytheway | ExploitThird Party Advisory | |
| https://github.com/tenable/routeros/tree/master/poc/cve_2018_14847 | ExploitThird Party Advisory | |
| https://mikrotik.com/supportsec/winbox-vulnerability | Vendor Advisory | |
| https://n0p.me/winbox-bug-dissection/ | ExploitThird Party Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-14847 | government-resourceUS Government Resource | |
| https://www.exploit-db.com/exploits/45578/ | exploitThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 2, 2018
Updated Oct 21, 2025
Reserved Aug 2, 2018
Link CVE-2018-14847
CISA Vulnrichment
Updated Feb 4, 2025