CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.1. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.
CVE
CVE-2021-20599
Severity
CRITICAL
CVSS
9.1
EPSS
1.30%
Original NVD Description
Cleartext Transmission of Sensitive InformationCleartext transmission of sensitive information vulnerability in MELSEC iQ-R series Safety CPU R08/16/32/120SFCPU firmware versions "26" and prior and MELSEC iQ-R series SIL2 Process CPU R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to a target CPU module by obtaining credentials other than password.
Related CVEs
Other vulnerabilities affecting the same vendor(s)