NVD

CVE-2021-27477 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.

Description

When JTEKT Corporation TOYOPUC PLC versions PC10G-CPU, 2PORT-EFR, Plus CPU, Plus EX, Plus EX2, Plus EFR, Plus EFR2, Plus 2P-EFR, PC10P-DP, PC10P-DP-IO, Plus BUS-EX, Nano 10GX, Nano 2ET,PC10PE, PC10PE-16/16P, PC10E, FL/ET-T-V2H, PC10B,PC10B-P, Nano CPU, PC10P, and PC10GE receive an invalid frame, the outside area of a receive buffer for FL-net are overwritten. As a result, the PLC CPU detects a system error, and the affected products stop.

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: 7.5 HIGH

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 7.8 HIGH

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

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-180-04	Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-180-04	Third Party Advisory US Government Resource

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	NIST
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	ICS-CERT

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Initial Analysis by NIST 7/08/2021 2:47:09 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:2port-efr_firmware::::::::* versions up to (excluding) 1.50 OR cpe:2.3:h:jtekt:2port-efr:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:fl\/et-t-v2h_firmware::::::::* versions up to (excluding) f2.8_e1.5 OR cpe:2.3:h:jtekt:fl\/et-t-v2h:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:nano_10gx_firmware::::::::* versions up to (excluding) 3.00 OR cpe:2.3:h:jtekt:nano_10gx:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:nano_2et_firmware::::::::* versions up to (excluding) 2.40 OR cpe:2.3:h:jtekt:nano_2et:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:nano_cpu_firmware::::::::* versions up to (excluding) 2.08 OR cpe:2.3:h:jtekt:nano_cpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10b-p_firmware::::::::* versions up to (excluding) 1.11 OR cpe:2.3:h:jtekt:pc10b-p:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10b_firmware::::::::* versions up to (excluding) 1.11 OR cpe:2.3:h:jtekt:pc10b:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10e_firmware::::::::* versions up to (excluding) 1.02 OR cpe:2.3:h:jtekt:pc10e:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10g-cpu_firmware::::::::* versions up to (excluding) 3.91 OR cpe:2.3:h:jtekt:pc10g-cpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10ge_firmware::::::::* versions up to (excluding) 1.04 OR cpe:2.3:h:jtekt:pc10ge:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10p-dp-io_firmware::::::::* versions up to (excluding) 1.50 OR cpe:2.3:h:jtekt:pc10p-dp-io:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10p-dp_firmware::::::::* versions up to (excluding) 1.50 OR cpe:2.3:h:jtekt:pc10p-dp:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10p_firmware::::::::* versions up to (excluding) 1.05 OR cpe:2.3:h:jtekt:pc10p:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10pe-16\/16p_firmware::::::::* versions up to (excluding) 1.02 OR cpe:2.3:h:jtekt:pc10pe-16\/16p:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:pc10pe_firmware::::::::* versions up to (excluding) 1.02 OR cpe:2.3:h:jtekt:pc10pe:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_2p-efr_firmware::::::::* versions up to (excluding) 3.11 OR cpe:2.3:h:jtekt:plus_2p-efr:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_bus-ex_firmware::::::::* versions up to (excluding) 2.13 OR cpe:2.3:h:jtekt:plus_bus-ex:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_cpu_firmware::::::::* versions up to (excluding) 3.11 OR cpe:2.3:h:jtekt:plus_cpu:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_efr2_firmware::::::::* versions up to (excluding) 3.11 OR cpe:2.3:h:jtekt:plus_efr2:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_efr_firmware::::::::* versions up to (excluding) 3.11 OR cpe:2.3:h:jtekt:plus_efr:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_ex2_firmware::::::::* versions up to (excluding) 3.11 OR cpe:2.3:h:jtekt:plus_ex2:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:jtekt:plus_ex_firmware::::::::* versions up to (excluding) 3.11 OR cpe:2.3:h:jtekt:plus_ex:-:::::::*
Changed	Reference Type	https://us-cert.cisa.gov/ics/advisories/icsa-21-180-04 No Types Assigned	https://us-cert.cisa.gov/ics/advisories/icsa-21-180-04 Third Party Advisory, US Government Resource

Quick Info

CVE Dictionary Entry:
CVE-2021-27477
NVD Published Date:
07/01/2021
NVD Last Modified:
11/21/2024
Source:
ICS-CERT

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-27477 Detail

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 CVE 11/21/2024 12:58:04 AM

CVE Modified by ICS-CERT 5/14/2024 4:39:05 AM

Reanalysis by NIST 10/07/2022 3:16:18 PM

Initial Analysis by NIST 7/08/2021 2:47:09 PM

Quick Info