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CVE-2018-7794 Details

Description

A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium (see security notification for specific versions) which could cause a Denial of Service when reading data with invalid index using Modbus TCP.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://www.se.com/ww/en/download/document/SEVD-2019-344-01	CVE	Vendor Advisory
https://www.se.com/ww/en/download/document/SEVD-2019-344-01	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-754	Improper Check for Unusual or Exceptional Conditions	[email protected]
CWE-754	Improper Check for Unusual or Exceptional Conditions	[email protected]

Affected Products

Product	Versions
schneider-electric modicon m580 firmware	< 2.80
CPE cpe:2.3:o:schneider-electric:modicon_m580_firmware:::::::: Remediation No remediation found in references.
schneider-electric modicon m580	All versions
CPE cpe:2.3:h:schneider-electric:modicon_m580:-:::::::* Remediation No remediation found in references.
schneider-electric modicon m340 firmware	< 3.01
CPE cpe:2.3:o:schneider-electric:modicon_m340_firmware:::::::: Remediation No remediation found in references.
schneider-electric modicon m340	All versions
CPE cpe:2.3:h:schneider-electric:modicon_m340:-:::::::* Remediation No remediation found in references.
schneider-electric tsxh5744m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxh5744m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxh5744m	All versions
CPE cpe:2.3:h:schneider-electric:tsxh5744m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxh5724m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxh5724m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxh5724m	All versions
CPE cpe:2.3:h:schneider-electric:tsxh5724m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp576634m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp576634m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp576634m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp576634m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57554m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57554m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57554m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57554m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp575634m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp575634m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp575634m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp575634m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57454m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57454m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57454m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57454m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp574634m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp574634m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp574634m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp574634m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57354m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57354m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57354m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57354m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp573634m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp573634m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp573634m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp573634m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57304m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57304m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57304m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57304m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57254m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57254m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57254m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57254m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp572634m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp572634m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp572634m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp572634m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57204m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57204m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57204m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57204m_:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp571634m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp571634m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp571634m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp571634m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57154m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57154m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57154m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57154m:-:::::::* Remediation No remediation found in references.
schneider-electric tsxp57104m firmware	< 3.20
CPE cpe:2.3:o:schneider-electric:tsxp57104m_firmware:::::::: Remediation No remediation found in references.
schneider-electric tsxp57104m	All versions
CPE cpe:2.3:h:schneider-electric:tsxp57104m:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu65150 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu65150_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu65150	All versions
CPE cpe:2.3:h:schneider-electric:140cpu65150:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu65160 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu65160_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu65160	All versions
CPE cpe:2.3:h:schneider-electric:140cpu65160:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu65260 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu65260_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu65260	All versions
CPE cpe:2.3:h:schneider-electric:140cpu65260:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu67261 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu67261_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu67261	All versions
CPE cpe:2.3:h:schneider-electric:140cpu67261:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu67060 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu67060_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu67060	All versions
CPE cpe:2.3:h:schneider-electric:140cpu67060:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu67160 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu67160_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu67160	All versions
CPE cpe:2.3:h:schneider-electric:140cpu67160:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu67260 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu67260_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu67260	All versions
CPE cpe:2.3:h:schneider-electric:140cpu67260:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu65860 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu65860_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu65860	All versions
CPE cpe:2.3:h:schneider-electric:140cpu65860:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu67861 firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu67861_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu67861	All versions
CPE cpe:2.3:h:schneider-electric:140cpu67861:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu65160s firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu65160s_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu65160s	All versions
CPE cpe:2.3:h:schneider-electric:140cpu65160s:-:::::::* Remediation No remediation found in references.
schneider-electric 140cpu67160s firmware	< 3.52
CPE cpe:2.3:o:schneider-electric:140cpu67160s_firmware:::::::: Remediation No remediation found in references.
schneider-electric 140cpu67160s	All versions
CPE cpe:2.3:h:schneider-electric:140cpu67160s:-:::::::* Remediation No remediation found in references.

Change History

10 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 29, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 3, 2022	Reanalysis	[email protected]
Jan 31, 2022	CPE Deprecation Remap	[email protected]
Jan 31, 2022	CPE Deprecation Remap	[email protected]
Aug 19, 2021	CPE Deprecation Remap	[email protected]
Jan 14, 2020	Initial Analysis	[email protected]

CVE-2018-7794 Details

Description

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