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CVE-2020-16850

Published: Nov 30, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-20
7.5HIGH
NVD MITRE
EPSS Score
2.1%
Top 19.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not 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.

No summary for this CVE yet.

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

Mitsubishi Electric Corporation
commercial·JPaka mitsubishi electric
MELSEC iQ R00 CPU
ICS / OT / IoT
MELSEC iQ R01 CPU
ICS / OT / IoT
MELSEC iQ R02 CPU
ICS / OT / IoT
MELSEC iQ R04 (EN) CPU
ICS / OT / IoT
MELSEC iQ R08 (EN) CPU
ICS / OT / IoT
MELSEC iQ R16 (EN) CPU
ICS / OT / IoT
MELSEC iQ R32 (EN) CPU
ICS / OT / IoT
MELSEC iQ R120 (EN) CPU
ICS / OT / IoT
mitsubishielectric
commercial·JPaka mitsubishi electric
r00cpu firmware
ICS / OT / IoT
r01cpu firmware
ICS / OT / IoT
r02cpu firmware
ICS / OT / IoT
r04cpu firmware
ICS / OT / IoT
r08cpu firmware
ICS / OT / IoT
r16cpu firmware
ICS / OT / IoT
r32cpu firmware
ICS / OT / IoT
r120cpu firmware
ICS / OT / IoT
and 23 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-16850?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://www.us-cert.gov/ics/advisories/icsa-20-282-02
us-cert.gov
https://nvd.nist.gov/vuln/detail/CVE-2020-16850
nvd.nist.gov
https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series
blog.scadafence.com
and 13 more references View all →

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