MEDIUM
Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a memory exhaustion vulnerability
Published Aug 23, 2018
6.5
MEDIUMCVSS 3.0
EPSS 4.38%
Description
Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a memory exhaustion vulnerability. An authenticated remote attacker can crash the HTTP server and in some circumstances reboot the system via a crafted HTTP POST request.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:L/Au:S/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication Single
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.
4.38% 0.04375
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.04375
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.38% (0.04375) | 90.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.38% (0.04375) | 89.99th | v5 (v2026.06.15) |
| Apr 6, 2025 | 2.32% (0.02324) | 83.44th | v4 (v2025.03.14) |
| Mar 20, 2025 | 3.36% (0.03359) | 86.29th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.00% (0.02002) | 82.48th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.30% (0.00298) | 68.98th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.39% (0.00391) | 72.63th | v3 (v2023.03.01) |
| Aug 17, 2023 | 0.39% (0.00391) | 69.92th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00336) | 66.67th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Sep 22, 2022 | 1.13% (0.01132) | 54.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.13% (0.01132) | 52.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.31% (0.01306) | 31.19th | v1 |
| Jan 6, 2022 | 1.31% (0.01306) | 30.55th | v1 |
| Sep 1, 2021 | 1.31% (0.01306) | 69.61th | v1 |
| Apr 14, 2021 | 1.31% (0.01306) | 0.00th | v1 |
Weaknesses (1)
References (4)
- http://seclists.org/fulldisclosure/2019/Jul/20 mailing-listx_refsource_FULLDISC
- https://mikrotik.com/download/changelogs x_refsource_CONFIRMVendor Advisory
- https://mikrotik.com/download/changelogs/bugfix-release-tree x_refsource_CONFIRMVendor Advisory
- https://www.tenable.com/security/research/tra-2018-21 x_refsource_MISCExploitThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2019/Jul/20 | mailing-listx_refsource_FULLDISC | |
| https://mikrotik.com/download/changelogs | x_refsource_CONFIRMVendor Advisory | |
| https://mikrotik.com/download/changelogs/bugfix-release-tree | x_refsource_CONFIRMVendor Advisory | |
| https://www.tenable.com/security/research/tra-2018-21 | x_refsource_MISCExploitThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner tenable
Published Aug 23, 2018
Updated Sep 17, 2024
Reserved Dec 5, 2017
Link CVE-2018-1157
CISA Vulnrichment
Updated n/a