An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all versions, QJ71E71-B5, all versions, and QJ71E71-B2, all versions
Published Feb 13, 2017
8.6
HIGHCVSS 3.1
EPSS 2.61%
Description
An issue was discovered in Mitsubishi Electric Automation MELSEC-Q series Ethernet interface modules QJ71E71-100, all versions, QJ71E71-B5, all versions, and QJ71E71-B2, all versions. The affected Ethernet interface module is connected to a MELSEC-Q PLC, which may allow a remote attacker to connect to the PLC via Port 5002/TCP and cause a denial of service, requiring the PLC to be reset to resume operation. This is caused by an Unrestricted Externally Accessible Lock.
Affected products
- Vendor n/a Product Mitsubishi Electric MELSEC-Q Series Ethernet Interface Module Defaultn/a
- Version Mitsubishi Electric MELSEC-Q Series Ethernet Interface ModuleStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Mitsubishi Electric MELSEC-Q Series Ethernet Interface Module | n/a |
|
Configuration 1
- n/a
Running on/with
- n/a
Configuration 2
- n/a
Running on/with
- n/a
Configuration 3
- n/a
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.61% (0.02615) | 84.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.61% (0.02615) | 83.37th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.69% (0.00686) | 70.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00144) | 51.77th | v3 (v2023.03.01) |
| May 16, 2024 | 0.16% (0.00158) | 52.05th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00118) | 44.14th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (2)
- http://www.securityfocus.com/bid/94632 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-16-336-03 x_refsource_MISCMitigationThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/94632 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://ics-cert.us-cert.gov/advisories/ICSA-16-336-03 | x_refsource_MISCMitigationThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.