CVE-2020-6986

CVSS V2 High 7.8 CVSS V3 High 7.5
Description
In all versions of Omron PLC CJ Series, an attacker can send a series of specific data packets within a short period, causing a service error on the PLC Ethernet module, which in turn causes a PLC service denied result.
Overview
  • CVE ID
  • CVE-2020-6986
  • Assigner
  • ics-cert@hq.dhs.gov
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-03-05T21:15:10
  • Last Modified Date
  • 2020-03-09T18:33:53
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:omron:plc_cj1_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:omron:plc_cj1:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:omron:plc_cj2_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:omron:plc_cj2:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.9
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.us-cert.gov/ics/advisories/icsa-20-063-03 Mitigation Third Party Advisory US Government Resource
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-6986
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-6986
History
Created Old Value New Value Data Type Notes
2022-05-10 16:48:07 Added to TrackCVE
2022-12-04 12:09:50 2020-03-05T21:15Z 2020-03-05T21:15:10 CVE Published Date updated
2022-12-04 12:09:50 2020-03-09T18:33:53 CVE Modified Date updated
2022-12-04 12:09:50 Analyzed Vulnerability Status updated