CVE Vulnerability

CVE-2020-5666

Uncontrolled resource consumption vulnerability in MELSEC iQ-R Series CPU Modules (R00/01/02CPU Firmware versions from '05' to '19' and R04/08/16/32/120(EN)CPU Firmware versions from '35' to '51') allows a remote attacker to cause an error in a CPU unit via a specially crafted HTTP packet, which may lead to a denial-of-service (DoS) condition in execution of the program and its communication.

7.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://jvn.jp/jp/JVN44764844/index.html Third Party Advisory
https://jvn.jp/en/jp/JVN44764844/index.html Third Party Advisory
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2020-015_en.pdf Mitigation Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-317-01 Third Party Advisory US Government Resource
Configurations

Configuration 1
Information

Published : 2020-11-16 01:15

Updated : 2020-12-03 04:14

NVD link : CVE-2020-5666

Mitre link : CVE-2020-5666

Products Affected
No products.
CWE
CWE-400