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CVE-2020-16850

Published: Nov 30, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-20
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.1%
Top 20.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-20CWE-400

Affected Products

n/an/a
MELSEC iQ R00 CPUMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ R01 CPUMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ R02 CPUMitsubishi Electric CorporationICS / OT / IoT
MELSEC iQ R04 (EN) CPUMitsubishi Electric CorporationICS / OT / IoT
mitsubishi electric corporationcommercialJPICS / OT / IoTaka mitsubishi electric
and 34 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series
blog.scadafence.com
https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02
us-cert.cisa.gov
https://www.us-cert.gov/ics/advisories/icsa-20-282-02
us-cert.gov
and 13 more references View all →

Timeline

Published
Nov 30, 2020
Last Updated
Nov 21, 2024

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