CVE Vulnerabilities

CVE-2021-20599

Cleartext Transmission of Sensitive Information

Published: Oct 14, 2021 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

Affected Software

Name Vendor Start Version End Version
R08sfcpu_firmware Mitsubishielectric * *

Potential Mitigations

References