CVE-2020-7543

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
A CWE-754: Improper Check for Unusual or Exceptional Conditions vulnerability exists in Modicon M580, Modicon M340, Legacy Controllers Modicon Quantum & Modicon Premium (see security notifications for affected versions), that could cause denial of service when a specially crafted Read Physical Memory request over Modbus is sent to the controller.
Overview
  • CVE ID
  • CVE-2020-7543
  • Assigner
  • cybersecurity@se.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-11T01:15:12
  • Last Modified Date
  • 2021-08-18T22:42:15
Weakness Enumerations
CWE URL
CWE-754 http://cwe.mitre.org/data/definitions/754.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep584040_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep582040_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep586040_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep585040_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep582020_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep581020_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep584020_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep583040_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m580_bmep583020_firmware:*:*:*:*:*:*:*:* 1 OR 3.20
cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp341000_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp341000:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp342000_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp342000:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp3420102_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp3420102:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp3420102cl_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp3420102cl:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp342020_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp342020:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp3420302_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp3420302:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:bmxp3420302cl_firmware:*:*:*:*:*:*:*:* 1 OR 3.30
cpe:2.3:h:schneider-electric:bmxp3420302cl:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.se.com/ww/en/download/document/SEVD-2020-343-08/ Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-7543
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7543
History
Created Old Value New Value Data Type Notes
2022-05-10 06:56:42 Added to TrackCVE
2022-12-05 18:00:47 cybersecurity@schneider-electric.com cybersecurity@se.com CVE Assigner updated
2022-12-05 18:00:47 2020-12-11T01:15Z 2020-12-11T01:15:12 CVE Published Date updated
2022-12-05 18:00:47 2021-08-18T22:42:15 CVE Modified Date updated
2022-12-05 18:00:47 Analyzed Vulnerability Status updated