CVE-2018-7758
Status: ModifiedMedium (6.5)—
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.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.62%
- Percentile among all scored CVEs: 48
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (23)
Schneider-electric — Micom P141 FirmwareSchneider-electric — Micom P142 FirmwareSchneider-electric — Micom P143 FirmwareSchneider-electric — Micom P145 FirmwareSchneider-electric — Micom P441 FirmwareSchneider-electric — Micom P442 FirmwareSchneider-electric — Micom P443 FirmwareSchneider-electric — Micom P444 FirmwareSchneider-electric — Micom P445 FirmwareSchneider-electric — Micom P446 FirmwareSchneider-electric — Micom P541 FirmwareSchneider-electric — Micom P542 FirmwareSchneider-electric — Micom P543 FirmwareSchneider-electric — Micom P544 FirmwareSchneider-electric — Micom P545 FirmwareSchneider-electric — Micom P546 FirmwareSchneider-electric — Micom P642 FirmwareSchneider-electric — Micom P643 FirmwareSchneider-electric — Micom P645 FirmwareSchneider-electric — Micom P746 FirmwareSchneider-electric — Micom P841a FirmwareSchneider-electric — Micom P841b FirmwareSchneider-electric — Micom P849 Firmware
CWEs
- CWE-613
References
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/
- https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/
Raw JSON (NVD)
Show
{
"id": "CVE-2018-7758",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 3.3,
"accessVector": "ADJACENT_NETWORK",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 6.5,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 6.5,
"attackVector": "ADJACENT_NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "cybersecurity@se.com",
"affectedData": [
{
"vendor": "Schneider Electric SE",
"product": "MiCOM P540D Range with Legacy Ethernet Board",
"versions": [
{
"status": "affected",
"version": "MiCOM P540D Range with Legacy Ethernet Board, MiCOM Px4x with Legacy Ethernet Board, MiCOM Px4x Rejuvenated"
}
]
}
]
}
],
"published": "2018-04-18T20:29:00.623",
"references": [
{
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/",
"tags": [
"Vendor Advisory"
],
"source": "cybersecurity@se.com"
},
{
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/",
"tags": [
"Vendor Advisory"
],
"source": "cybersecurity@se.com"
},
{
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/",
"tags": [
"Vendor Advisory"
],
"source": "cybersecurity@se.com"
},
{
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2018-074-02/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2018-074-03/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2018-074-04/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-613"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Existe una vulnerabilidad de denegación de servicio (DoS) en MiCOM Px4x (excepto el rango P540) con una placa Ethernet heredada, MiCOM P540D Range con una placa Ethernet heredada y MiCOM Px4x Rejuvenated, de Schneider Electric, que podrían perder la comunicación de red en caso de que TCP/IP abra peticiones en el puerto 20000 (DNP3oE) si una sesión TCP/IP más antigua siga abierta con una dirección IP y un número de puerto idénticos."
}
],
"lastModified": "2026-06-17T02:03:40.000",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p141_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A4F6DBB7-9624-4EA9-9919-1A69858E876C"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p141:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "CB66BA84-326B-4736-A1C3-23C392AA0D2D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p142_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "43E65F7C-461D-4D9D-B53D-EEA1AA3ECCF4"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p142:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DA40F7D9-0CFD-4B3E-9778-20FA6629DC2A"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p143_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DE4E1A6F-3C57-4CF5-A51C-ABA423AFD8E8"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p143:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DE14D191-C5FB-49B3-9CD0-DE582BF8D78D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p145_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9DDAAB33-6F1C-4F3B-BF97-FACE295A6DFB"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p145:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "DB19F186-9198-4737-9DC3-38F8EC7D825E"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p642_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EBA81ADE-3E81-4BA1-BDA6-EFD7FC91066F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p642:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3F386142-BBE2-4D2C-873C-94F4C8BADE2F"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p643_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4337C146-B488-4E3B-8091-BC041EBE8F4D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p643:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "C13F35E4-91ED-497C-9B90-7A6D34FA8420"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p645_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8B4EB35E-F9B9-49B9-8A2F-00A7CB397425"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p645:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EC848CCA-0987-4E26-B0FB-9F84335E2C58"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p849_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "41AF4930-4722-4CEA-A42B-38F81C984D2D"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p849:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "5AE56068-65C7-451B-8ADD-C3A50A832315"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p746_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0102F085-2B02-4146-8B25-C8F64DAD32A1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p746:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "AD4F25E8-5A36-4534-AE1B-E71A6ADACF8C"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p841a_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DCB1DF33-2300-43F6-A250-9AFDA65CB47C"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p841a:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "7F1E54F4-7E0C-4CC5-9F51-1C00EFA9A9A0"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p841b_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ADEA3E98-4313-4A70-9DCA-96603B0D466E"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p841b:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "FB9780E6-18E4-44D4-B6D3-97B494977CA9"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p443_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EF8CD1C7-E37C-4C6B-A84A-2FC937E1B19E"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p443:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "92A3446C-E8CE-4A68-B95E-AA112FE2DD92"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p445_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1F250AFB-8187-486F-B5AC-9D62E0584A78"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p445:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E98C75F8-2B50-49D4-AC8C-889A70651984"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p446_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CFD93D10-98BB-4392-9D11-490A85BA62E1"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p446:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "52678814-0201-4C3E-8CD8-439E98368FB6"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p441_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0B1F1246-EBC7-4C58-B935-F637CC1820F3"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p441:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "35DB9B7B-4935-4571-B09B-7ECBE8E8C11A"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p442_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "82CAB7FC-4451-4D0C-B76B-999C7D53F4D9"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p442:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "1299E62E-5D4D-41E2-B17A-E2E0B4178A1D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p444_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "48E304E6-5B69-4433-B697-C86937B949EB"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p444:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "29A144F1-6EEC-4F7D-91B7-282AC6CB337B"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p541_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7A73A8BC-CA96-40B0-8751-23CB49815F98"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p541:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E5A45309-43FE-4539-8A16-65AFD27EFA20"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p542_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6333E1B2-0753-45C9-B57D-1918C4E673DD"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p542:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "6AA1AC18-F559-4353-A4E5-67F1182DD90D"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p543_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C3CDE2C3-CC50-4819-869B-88BEF7675D62"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p543:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "EAEFC6A3-C1F6-4814-BA6D-406F4567C314"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p544_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BD5E489E-D768-4BD7-89AF-4CE3B193EECF"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p544:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "26E5D0E4-FAA0-48A3-B228-ADADA23805F5"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p545_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8466FB17-8C8A-43D6-9763-03F6FD0C753F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p545:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "49B46E43-1C2D-4BD5-95D9-E8EF278F3CE7"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:schneider-electric:micom_p546_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "40117EF7-3DC1-4CA0-A34A-2607055DF35F"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:schneider-electric:micom_p546:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "E449849F-07B8-447D-B737-DE565F3DEF57"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cybersecurity@se.com"
}