HIGH
A buffer overflow in Mikrotik RouterOS 6.47 allows unauthenticated attackers to cause a denial of service (DOS) via crafted FTP requests
Published Feb 28, 2022
7.5
HIGHCVSS 3.1
EPSS 1.25%
Description
A buffer overflow in Mikrotik RouterOS 6.47 allows unauthenticated attackers to cause a denial of service (DOS) via crafted FTP requests.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.5 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.25% 0.01250
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.01250
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.25% (0.01250) | 68.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.20% (0.01201) | 64.08th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.25% (0.01250) | 77.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00124) | 48.58th | v3 (v2023.03.01) |
| Aug 11, 2023 | 0.11% (0.00107) | 42.65th | v3 (v2023.03.01) |
| Apr 2, 2023 | 0.10% (0.00097) | 39.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00086) | 34.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Mar 1, 2022 | 0.89% (0.00885) | 11.15th | v2 (v2022.01.01) |
Weaknesses (1)
References (2)
- https://github.com/colorlight/mikrotik_poc/blob/master/two_vulns.md x_refsource_MISCThird Party Advisory
- https://mikrotik.com/support x_refsource_MISCProduct
| Link | Providers | Tags |
|---|---|---|
| https://github.com/colorlight/mikrotik_poc/blob/master/two_vulns.md | x_refsource_MISCThird Party Advisory | |
| https://mikrotik.com/support | x_refsource_MISCProduct |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 28, 2022
Updated Aug 4, 2024
Reserved Aug 13, 2020
Link CVE-2020-22845
CISA Vulnrichment
Updated n/a