Resource Management Errors vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet
Published Oct 30, 2020
7.5
HIGHCVSS 3.1
EPSS 2.92%
Description
Resource Management Errors vulnerability in TCP/IP function included in the firmware of MELSEC iQ-R series (RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or before) allows a remote unauthenticated attacker to stop the network functions of the products via a specially crafted packet.
Affected products
-
- Version RJ71EIP91 EtherNet/IP Network Interface Module First 2 digits of serial number are '02' or before, RJ71PN92 PROFINET IO Controller Module First 2 digits of serial number are '01' or before, RD81DL96 High Speed Data Logger Module First 2 digits of serial number are '08' or before, RD81MES96N MES Interface Module First 2 digits of serial number are '04' or before, and RD81OPC96 OPC UA Server Module First 2 digits of serial number are '04' or beforeStatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mitsubishi Electric Corporation | MELSEC iQ-R series | n/a |
|
Configuration 1
Running on/with
- n/a
Configuration 2
Running on/with
- n/a
Configuration 3
Running on/with
- n/a
Configuration 4
Running on/with
- n/a
Configuration 5
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:U/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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.92% (0.02920) | 86.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.89% (0.02885) | 85.00th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.33% (0.00333) | 71.45th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.33% (0.00333) | 70.38th | v3 (v2023.03.01) |
| Jul 15, 2023 | 0.33% (0.00333) | 67.25th | v3 (v2023.03.01) |
| May 10, 2023 | 0.29% (0.00293) | 64.54th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00283) | 63.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.74% (0.05736) | 77.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.53% (0.04526) | 76.76th | v1 |
| Jan 6, 2022 | 4.53% (0.04526) | 76.54th | v1 |
| Sep 1, 2021 | 1.05% (0.01046) | 65.02th | v1 |
| Apr 14, 2021 | 1.05% (0.01046) | 0.00th | v1 |
No CWE recorded.
References (3)
- https://jvn.jp/vu/JVNVU92513419/index.html x_refsource_MISCThird Party Advisory
- https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf x_refsource_MISCVendor Advisory
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://jvn.jp/vu/JVNVU92513419/index.html | x_refsource_MISCThird Party Advisory | |
| https://www.mitsubishielectric.co.jp/psirt/vulnerability/pdf/2020-012.pdf | x_refsource_MISCVendor Advisory | |
| https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-012_en.pdf | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.