NVD

NOTICE UPDATED - May, 29th 2024

The NVD has a new announcement page with status updates, news, and how to stay connected!

CVE-2021-20597 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Current Description

Insufficiently Protected Credentials vulnerability in Mitsubishi Electric MELSEC iQ-R series Safety CPU modules R08/16/32/120SFCPU firmware versions "26" and prior and Mitsubishi Electric MELSEC iQ-R series SIL2 Process CPU modules R08/16/32/120PSFCPU firmware versions "11" and prior allows a remote unauthenticated attacker to login to the target unauthorizedly by sniffing network traffic and obtaining credentials when registering user information in the target or changing a password.

View Analysis Description

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 9.1 CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 6.4 MEDIUM

Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:N)

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink	Resource
https://jvn.jp/vu/JVNVU98578731/index.html	Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-250-01
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-522	Insufficiently Protected Credentials	NIST

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

5 change records found show changes

Reanalysis by NIST 8/27/2021 9:10:56 AM

Action	Type	Old Value	New Value
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r08_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r08_psfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r08psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r08psfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r08_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r08_sfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r08sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r08sfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r120_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r120_psfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r120psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r120psfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r120_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r120_sfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r120sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r120sfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r16_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r16_psfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r16psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r16psfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r16_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r16_sfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r16sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r16sfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r32_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r32_psfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r32psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r32psfcpu:-:::::::*
Changed	CPE Configuration	AND OR cpe:2.3:o:mitsubishielectric:r32_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r32_sfcpu:-:::::::*	AND OR cpe:2.3:o:mitsubishielectric:r32sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r32sfcpu:-:::::::*

Initial Analysis by NIST 8/16/2021 4:04:19 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r08_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r08_psfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r08_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r08_sfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r120_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r120_psfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r120_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r120_sfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r16_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r16_psfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r16_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r16_sfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r32_psfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r32_psfcpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:mitsubishielectric:r32_sfcpu_firmware::::::::* OR cpe:2.3:h:mitsubishielectric:r32_sfcpu:-:::::::*
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:P/I:P/A:N)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Added	CWE		NIST CWE-522
Changed	Reference Type	https://jvn.jp/vu/JVNVU98578731/index.html No Types Assigned	https://jvn.jp/vu/JVNVU98578731/index.html Third Party Advisory
Changed	Reference Type	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf No Types Assigned	https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-009_en.pdf Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-20597
NVD Published Date:
08/06/2021
NVD Last Modified:
05/24/2024
Source:
Mitsubishi Electric Corporation

You are viewing this page in an unauthorized frame window.

Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-20597 Detail

Current Description

Analysis Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by Mitsubishi Electric Corporation 5/24/2024 4:15:08 AM

CVE Modified by Mitsubishi Electric Corporation 5/14/2024 4:05:33 AM

CVE Modified by Mitsubishi Electric Corporation 10/14/2022 2:15:14 PM

Reanalysis by NIST 8/27/2021 9:10:56 AM

Initial Analysis by NIST 8/16/2021 4:04:19 PM

Quick Info