A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P540 range excluded) with legacy Ethernet board, MiCOM P540D Range with Legacy Ethernet Board, and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 20000 (DNP3oE) if an older TCI/IP session is still open with identical IP address and port number
Published Apr 18, 2018
6.5
MEDIUMCVSS 3.0
EPSS 0.62%
Description
A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P540 range excluded) with legacy Ethernet board, MiCOM P540D Range with Legacy Ethernet Board, and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 20000 (DNP3oE) if an older TCI/IP session is still open with identical IP address and port number.
Affected products
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- Version MiCOM P540D Range with Legacy Ethernet Board, MiCOM Px4x with Legacy Ethernet Board, MiCOM Px4x RejuvenatedStatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Schneider Electric SE | MiCOM P540D Range with Legacy Ethernet Board | n/a |
|
Configuration 1
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Configuration 2
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Configuration 3
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Configuration 4
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Configuration 5
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Configuration 6
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Configuration 7
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Configuration 8
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Configuration 9
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Configuration 10
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Configuration 11
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Configuration 12
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Configuration 13
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Configuration 14
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Configuration 15
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Configuration 16
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Configuration 17
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Configuration 18
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Configuration 19
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Configuration 20
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Configuration 21
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Configuration 22
- n/a
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Configuration 23
- n/a
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- 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:A/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 v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.62% (0.00622) | 47.93th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.63% (0.00634) | 48.98th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.12% (0.00124) | 47.34th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.12% (0.00124) | 46.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00104) | 40.91th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (3)
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/ x_refsource_CONFIRMVendor Advisory
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/ x_refsource_CONFIRMVendor Advisory
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/ x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/ | x_refsource_CONFIRMVendor Advisory | |
| https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/ | x_refsource_CONFIRMVendor Advisory | |
| https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/ | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.