Vulnerability Report

CVE-2020-16850

Title: Mitsubishi MELSEC iQ-R Series PLCs DoS

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2020-16850.

CWE Category CWE-20
Published Date Nov 30, 2020
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.5 CVSS v3.1
Exploit Probability (EPSS)
2.14%

Vulnerability Summary

CVE-2020-16850: 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.

Impacted Vendors

M
mitsubishielectric 19

Reference Links

https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02 https://blog.scadafence.com/vulnerability-in-mitsubishi-electric-melsec-iq-r-series https://us-cert.cisa.gov/ics/advisories/icsa-20-282-02
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-16850 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.