VAR-201905-1046
Vulnerability from variot - Updated: 2025-04-30 22:46A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus. plural Modicon The product contains an out-of-bounds read vulnerability.Service operation interruption (DoS) It may be in a state. Schneider Electric Modicon M580 and other products are products of Schneider Electric (France). Schneider Electric Modicon M580 is a programmable automation controller. Schneider Electric Modicon Premium is a large programmable logic controller (PLC) for discrete or process applications. Schneider Electric Modicon Quantum is a large programmable logic controller (PLC) for process applications, high availability and safety solutions.
Multiple Schneider Electric products have resource management bugs. An attacker could use this vulnerability to cause a denial of service. The following products and versions are affected: Schneider Electric Modicon M580 (all versions); Modicon M340 (all versions); Modicon Quantum (all versions); Modicon Premium (all versions)
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-201905-1046",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "modicon premium",
"scope": "eq",
"trust": 1.0,
"vendor": "schneider electric",
"version": "*"
},
{
"model": "modicon quantum",
"scope": "eq",
"trust": 1.0,
"vendor": "schneider electric",
"version": "*"
},
{
"model": "modicon m580",
"scope": "eq",
"trust": 1.0,
"vendor": "schneider electric",
"version": "*"
},
{
"model": "modicon m340",
"scope": "eq",
"trust": 1.0,
"vendor": "schneider electric",
"version": "*"
},
{
"model": "modicon quantum plc",
"scope": null,
"trust": 0.8,
"vendor": "schneider electric",
"version": null
},
{
"model": "modicon premium plc",
"scope": null,
"trust": 0.8,
"vendor": "schneider electric",
"version": null
},
{
"model": "modicon m580",
"scope": null,
"trust": 0.8,
"vendor": "schneider electric",
"version": null
},
{
"model": "modicon m340",
"scope": null,
"trust": 0.8,
"vendor": "schneider electric",
"version": null
},
{
"model": "electric modicon m340",
"scope": null,
"trust": 0.6,
"vendor": "schneider",
"version": null
},
{
"model": "electric modicon m580",
"scope": null,
"trust": 0.6,
"vendor": "schneider",
"version": null
},
{
"model": "electric modicon premium",
"scope": null,
"trust": 0.6,
"vendor": "schneider",
"version": null
},
{
"model": "electric modicon quantum",
"scope": null,
"trust": 0.6,
"vendor": "schneider",
"version": null
},
{
"model": null,
"scope": "eq",
"trust": 0.2,
"vendor": "modicon m580",
"version": "*"
},
{
"model": null,
"scope": "eq",
"trust": 0.2,
"vendor": "modicon m340",
"version": "*"
},
{
"model": null,
"scope": "eq",
"trust": 0.2,
"vendor": "modicon quantum",
"version": "*"
},
{
"model": null,
"scope": "eq",
"trust": 0.2,
"vendor": "modicon premium",
"version": "*"
}
],
"sources": [
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"credits": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/credits#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Discovered by Jared Rittle of Cisco Talos.",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
}
],
"trust": 0.6
},
"cve": "CVE-2018-7843",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "nvd@nist.gov",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"exploitabilityScore": 10.0,
"id": "CVE-2018-7843",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 1.9,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "CNVD",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"exploitabilityScore": 10.0,
"id": "CNVD-2019-34830",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.6,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "IVD",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"exploitabilityScore": 10.0,
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.2,
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.9 [IVD]"
},
{
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"author": "VULHUB",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"exploitabilityScore": 10.0,
"id": "VHN-137875",
"impactScore": 2.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.1,
"vectorString": "AV:N/AC:L/AU:N/C:N/I:N/A:P",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"author": "nvd@nist.gov",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"exploitabilityScore": 3.9,
"id": "CVE-2018-7843",
"impactScore": 3.6,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"trust": 1.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
{
"attackComplexity": "Low",
"attackVector": "Network",
"author": "NVD",
"availabilityImpact": "High",
"baseScore": 7.5,
"baseSeverity": "High",
"confidentialityImpact": "None",
"exploitabilityScore": null,
"id": "CVE-2018-7843",
"impactScore": null,
"integrityImpact": "None",
"privilegesRequired": "None",
"scope": "Unchanged",
"trust": 0.8,
"userInteraction": "None",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
}
],
"severity": [
{
"author": "nvd@nist.gov",
"id": "CVE-2018-7843",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "NVD",
"id": "CVE-2018-7843",
"trust": 0.8,
"value": "High"
},
{
"author": "CNVD",
"id": "CNVD-2019-34830",
"trust": 0.6,
"value": "MEDIUM"
},
{
"author": "CNNVD",
"id": "CNNVD-201905-917",
"trust": 0.6,
"value": "HIGH"
},
{
"author": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9",
"trust": 0.2,
"value": "HIGH"
},
{
"author": "VULHUB",
"id": "VHN-137875",
"trust": 0.1,
"value": "MEDIUM"
},
{
"author": "VULMON",
"id": "CVE-2018-7843",
"trust": 0.1,
"value": "MEDIUM"
}
]
}
],
"sources": [
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "VULHUB",
"id": "VHN-137875"
},
{
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
},
{
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "A CWE-248: Uncaught Exception vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause denial of service when reading memory blocks with an invalid data size or with an invalid data offset in the controller over Modbus. plural Modicon The product contains an out-of-bounds read vulnerability.Service operation interruption (DoS) It may be in a state. Schneider Electric Modicon M580 and other products are products of Schneider Electric (France). Schneider Electric Modicon M580 is a programmable automation controller. Schneider Electric Modicon Premium is a large programmable logic controller (PLC) for discrete or process applications. Schneider Electric Modicon Quantum is a large programmable logic controller (PLC) for process applications, high availability and safety solutions. \n\nMultiple Schneider Electric products have resource management bugs. An attacker could use this vulnerability to cause a denial of service. The following products and versions are affected: Schneider Electric Modicon M580 (all versions); Modicon M340 (all versions); Modicon Quantum (all versions); Modicon Premium (all versions)",
"sources": [
{
"db": "NVD",
"id": "CVE-2018-7843"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "VULHUB",
"id": "VHN-137875"
},
{
"db": "VULMON",
"id": "CVE-2018-7843"
}
],
"trust": 2.52
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2018-7843",
"trust": 4.2
},
{
"db": "SCHNEIDER",
"id": "SEVD-2019-134-11",
"trust": 1.8
},
{
"db": "TALOS",
"id": "TALOS-2018-0738",
"trust": 1.8
},
{
"db": "CNNVD",
"id": "CNNVD-201905-917",
"trust": 0.9
},
{
"db": "CNVD",
"id": "CNVD-2019-34830",
"trust": 0.8
},
{
"db": "ICS CERT",
"id": "ICSA-25-114-01",
"trust": 0.8
},
{
"db": "JVN",
"id": "JVNVU92254859",
"trust": 0.8
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477",
"trust": 0.8
},
{
"db": "IVD",
"id": "F0FC6464-0D4F-4DBD-86B8-5715C11B44C9",
"trust": 0.2
},
{
"db": "VULHUB",
"id": "VHN-137875",
"trust": 0.1
},
{
"db": "VULMON",
"id": "CVE-2018-7843",
"trust": 0.1
}
],
"sources": [
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "VULHUB",
"id": "VHN-137875"
},
{
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
},
{
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"id": "VAR-201905-1046",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "VULHUB",
"id": "VHN-137875"
}
],
"trust": 1.8935065
},
"iot_taxonomy": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot_taxonomy#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"category": [
"ICS"
],
"sub_category": null,
"trust": 0.8
}
],
"sources": [
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
}
]
},
"last_update_date": "2025-04-30T22:46:30.169000Z",
"patch": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/patch#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"title": "SEVD-2019-134-11",
"trust": 0.8,
"url": "https://www.schneider-electric.com/en/download/document/SEVD-2019-134-11/"
},
{
"title": "",
"trust": 0.1,
"url": "https://github.com/yanissec/CVE-2018-7843 "
}
],
"sources": [
{
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
}
]
},
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "CWE-125",
"trust": 1.1
},
{
"problemtype": "Out-of-bounds read (CWE-125) [NVD evaluation ]",
"trust": 0.8
},
{
"problemtype": "CWE-399",
"trust": 0.1
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-137875"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 2.0,
"url": "https://nvd.nist.gov/vuln/detail/cve-2018-7843"
},
{
"trust": 1.8,
"url": "https://www.schneider-electric.com/en/download/document/sevd-2019-134-11/"
},
{
"trust": 1.8,
"url": "https://www.talosintelligence.com/vulnerability_reports/talos-2018-0738"
},
{
"trust": 0.8,
"url": "https://jvn.jp/vu/jvnvu92254859/"
},
{
"trust": 0.8,
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-25-114-01"
},
{
"trust": 0.6,
"url": "https://talosintelligence.com/vulnerability_reports/talos-2018-0738"
},
{
"trust": 0.1,
"url": "https://cwe.mitre.org/data/definitions/125.html"
},
{
"trust": 0.1,
"url": "https://github.com/yanissec/cve-2018-7843"
},
{
"trust": 0.1,
"url": "https://nvd.nist.gov"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "VULHUB",
"id": "VHN-137875"
},
{
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
},
{
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"db": "VULHUB",
"id": "VHN-137875"
},
{
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
},
{
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2019-10-12T00:00:00",
"db": "IVD",
"id": "f0fc6464-0d4f-4dbd-86b8-5715c11b44c9"
},
{
"date": "2019-10-11T00:00:00",
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"date": "2019-05-22T00:00:00",
"db": "VULHUB",
"id": "VHN-137875"
},
{
"date": "2019-05-22T00:00:00",
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"date": "2019-06-07T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"date": "2019-05-22T00:00:00",
"db": "CNNVD",
"id": "CNNVD-201905-917"
},
{
"date": "2019-05-22T20:29:01.590000",
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2019-10-12T00:00:00",
"db": "CNVD",
"id": "CNVD-2019-34830"
},
{
"date": "2020-08-24T00:00:00",
"db": "VULHUB",
"id": "VHN-137875"
},
{
"date": "2022-02-03T00:00:00",
"db": "VULMON",
"id": "CVE-2018-7843"
},
{
"date": "2025-04-28T08:05:00",
"db": "JVNDB",
"id": "JVNDB-2018-015477"
},
{
"date": "2022-02-07T00:00:00",
"db": "CNNVD",
"id": "CNNVD-201905-917"
},
{
"date": "2024-11-21T04:12:51.810000",
"db": "NVD",
"id": "CVE-2018-7843"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "plural \u00a0Modicon\u00a0 Product out-of-bounds read vulnerability",
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2018-015477"
}
],
"trust": 0.8
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "buffer error",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201905-917"
}
],
"trust": 0.6
}
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.