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.
Advisories
Source ID Title
EUVD EUVD EUVD-2021-8017 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 25 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Mitsubishielectric melsec Iq-r08sfcpu
CPEs cpe:2.3:h:mitsubishielectric:melsec_iq-r08sfcpu:-:*:*:*:*:*:*:*
Vendors & Products Mitsubishielectric melsec Iq-r08sfcpu
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Mitsubishi

Published:

Updated: 2024-08-03T17:45:44.681Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2021-20599

cve-icon Vulnrichment

Updated: 2024-08-03T17:45:44.681Z

cve-icon NVD

Status : Modified

Published: 2021-10-14T15:15:08.827

Modified: 2024-11-21T05:46:51.317

Link: CVE-2021-20599

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses