CVE-2020-16850

CVSS V2 High 7.8 CVSS V3 High 7.5
Description
Mitsubishi MELSEC iQ-R Series PLCs with firmware 49 allow an unauthenticated attacker to halt the industrial process by sending a crafted packet over the network. This denial of service attack exposes Improper Input Validation. After halting, physical access to the PLC is required in order to restore production, and the device state is lost. This is related to R04CPU, RJ71GF11-T2, R04CPU, and RJ71GF11-T2.
Overview
  • CVE ID
  • CVE-2020-16850
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-11-30T22:15:10
  • Last Modified Date
  • 2021-07-21T11:39:23
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:mitsubishielectric:r00cpu_firmware:*:*:*:*:*:*:*:* 1 OR 20
cpe:2.3:h:mitsubishielectric:r00cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r01cpu_firmware:*:*:*:*:*:*:*:* 1 OR 20
cpe:2.3:h:mitsubishielectric:r01cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r02cpu_firmware:*:*:*:*:*:*:*:* 1 OR 20
cpe:2.3:h:mitsubishielectric:r02cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r04cpu_firmware:*:*:*:*:*:*:*:* 1 OR 52
cpe:2.3:h:mitsubishielectric:r04cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08cpu_firmware:*:*:*:*:*:*:*:* 1 OR 52
cpe:2.3:h:mitsubishielectric:r08cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16cpu_firmware:*:*:*:*:*:*:*:* 1 OR 52
cpe:2.3:h:mitsubishielectric:r16cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32cpu_firmware:*:*:*:*:*:*:*:* 1 OR 52
cpe:2.3:h:mitsubishielectric:r32cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120cpu_firmware:*:*:*:*:*:*:*:* 1 OR 52
cpe:2.3:h:mitsubishielectric:r120cpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r08sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r16sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r32sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware:*:*:*:*:*:*:*:* 1 OR 22
cpe:2.3:h:mitsubishielectric:r120sfcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r08pcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r08pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16pcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r16pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32pcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r32pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r120pcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r120pcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r16mtcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r16mtcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r32mtcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r32mtcpu:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:mitsubishielectric:r64mtcpu_firmware:*:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mitsubishielectric:r64mtcpu:-:*:*:*:*:*:*:* 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://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 Third Party Advisory US Government Resource
https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-16850
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16850
History
Created Old Value New Value Data Type Notes
2022-05-10 07:02:55 Added to TrackCVE
2022-12-05 17:26:55 2020-11-30T22:15Z 2020-11-30T22:15:10 CVE Published Date updated
2022-12-05 17:26:55 2021-07-21T11:39:23 CVE Modified Date updated
2022-12-05 17:26:55 Analyzed Vulnerability Status updated