CVE-2018-7843

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
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.
Overview
  • CVE ID
  • CVE-2018-7843
  • Assigner
  • cybersecurity@se.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-05-22T20:29:01
  • Last Modified Date
  • 2022-02-03T14:06:17
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:schneider-electric:modicon_m580_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:schneider-electric:modicon_m580:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:schneider-electric:modicon_m340:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_quantum_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:schneider-electric:modicon_quantum:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:schneider-electric:modicon_premium_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:schneider-electric:modicon_premium:-:*:*:*:*:*:*:* 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.schneider-electric.com/en/download/document/SEVD-2019-134-11/ Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0738 Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-7843
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7843
History
Created Old Value New Value Data Type Notes
2022-05-10 06:34:36 Added to TrackCVE
2022-12-03 21:07:02 cybersecurity@schneider-electric.com cybersecurity@se.com CVE Assigner updated
2022-12-03 21:07:02 2019-05-22T20:29Z 2019-05-22T20:29:01 CVE Published Date updated
2022-12-03 21:07:02 2022-02-03T14:06:17 CVE Modified Date updated
2022-12-03 21:07:02 Analyzed Vulnerability Status updated