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Vulnerability Details :

CVE-2022-45794

Assigner-Dragos

Assigner Org ID-12bdf821-1545-4a87-aac5-61670cc6fcef

Published At-10 Jan, 2024 | 22:56

Updated At-22 May, 2025 | 15:46

Omron CJ-series and CS-series unauthenticated filesystem access.

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:Dragos

Assigner Org ID:12bdf821-1545-4a87-aac5-61670cc6fcef

Published At:10 Jan, 2024 | 22:56

Updated At:22 May, 2025 | 15:46

▼CVE Numbering Authority (CNA)

Omron CJ-series and CS-series unauthenticated filesystem access.

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

Affected Products

Vendor

Omron

Product

CJ-series and CS-series CPU modules

Default Status

affected

Versions

Affected

Problem Types

Type	CWE ID	Description
CWE	CWE-306	CWE-306 Missing Authentication for Critical Function

Type: CWE

CWE ID: CWE-306

Description: CWE-306 Missing Authentication for Critical Function

Metrics

Version	Base score	Base severity	Vector
3.1	8.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Version: 3.1

Base score: 8.6

Base severity: HIGH

Vector:

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

Impacts

CAPEC ID	Description
CAPEC-165	CAPEC-165 File Manipulation

CAPEC ID: CAPEC-165

Description: CAPEC-165 File Manipulation

Credits

finder

Reid Wightman of Dragos, Inc.

References

Hyperlink	Resource
https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf	N/A
https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/	N/A

Hyperlink: https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf

Resource: N/A

Hyperlink: https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/

Resource: N/A

▼Authorized Data Publishers (ADP)

1. CVE Program Container

References

Hyperlink	Resource
https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf	x_transferred
https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/	x_transferred

Hyperlink: https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf

Resource:

x_transferred

Hyperlink: https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/

Resource:

x_transferred

2. CISA ADP Vulnrichment

Metrics Other Info

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:ot-cert@dragos.com

Published At:10 Jan, 2024 | 23:15

Updated At:23 Jan, 2024 | 19:34

An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Secondary	3.1	8.6	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Type: Primary

Version: 3.1

Base score: 7.5

Base severity: HIGH

Vector:

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

Type: Secondary

Version: 3.1

Base score: 8.6

Base severity: HIGH

Vector:

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

CPE Matches

omron>>sysmac_cj2h-cpu64-eip>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu64-eip:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu64-eip_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu64-eip_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu64>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu64:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu64_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu64_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu65-eip>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu65-eip:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu65-eip_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu65-eip_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu65>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu65:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu65_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu65_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu66-eip>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu66-eip:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu66-eip_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu66-eip_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu66>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu66:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu66_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu66_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu67-eip>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu67-eip:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu67-eip_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu67-eip_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu67_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu67_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu67>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu67:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu68-eip_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu68-eip_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu68-eip>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu68-eip:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu68_firmware>>-

cpe:2.3:o:omron:sysmac_cj2h-cpu68_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2h-cpu68>>-

cpe:2.3:h:omron:sysmac_cj2h-cpu68:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu11_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu11_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu11>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu11:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu12_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu12_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu12>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu12:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu13_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu13_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu13>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu13:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu14_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu14_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu14>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu14:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu15_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu15_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu15>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu15:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu31_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu31_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu31>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu31:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu32_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu32_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu32>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu32:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu33>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu33:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu33_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu33_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu34_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu34_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu34>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu34:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu35_firmware>>-

cpe:2.3:o:omron:sysmac_cj2m-cpu35_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj2m-cpu35>>-

cpe:2.3:h:omron:sysmac_cj2m-cpu35:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu45p_firmware>>-

cpe:2.3:o:omron:sysmac_cj1g-cpu45p_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu45p>>-

cpe:2.3:h:omron:sysmac_cj1g-cpu45p:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu44p_firmware>>-

cpe:2.3:o:omron:sysmac_cj1g-cpu44p_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu44p>>-

cpe:2.3:h:omron:sysmac_cj1g-cpu44p:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu43p_firmware>>-

cpe:2.3:o:omron:sysmac_cj1g-cpu43p_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu43p>>-

cpe:2.3:h:omron:sysmac_cj1g-cpu43p:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu42p_firmware>>-

cpe:2.3:o:omron:sysmac_cj1g-cpu42p_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cj1g-cpu42p>>-

cpe:2.3:h:omron:sysmac_cj1g-cpu42p:-:*:*:*:*:*:*:*

omron>>sysmac_cs1h-cpu63h_firmware>>-

cpe:2.3:o:omron:sysmac_cs1h-cpu63h_firmware:-:*:*:*:*:*:*:*

omron>>sysmac_cs1h-cpu63h>>-

cpe:2.3:h:omron:sysmac_cs1h-cpu63h:-:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-306	Primary	nvd@nist.gov
CWE-306	Secondary	ot-cert@dragos.com

CWE ID: CWE-306

Type: Primary

Source: nvd@nist.gov

CWE ID: CWE-306

Type: Secondary

Source: ot-cert@dragos.com

References

Hyperlink	Source	Resource
https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/	ot-cert@dragos.com	Third Party Advisory
https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf	ot-cert@dragos.com	Vendor Advisory

Hyperlink: https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/

Source: ot-cert@dragos.com

Resource:

Third Party Advisory

Hyperlink: https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf

Source: ot-cert@dragos.com

Resource:

Vendor Advisory

CVE-2022-45794

Credits

Omron CJ-series and CS-series unauthenticated filesystem access.

Vendors

Products

Metrics (CVSS)

Weaknesses

Attack Patterns

Solution/Workaround

References

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

Stakeholder-Specific Vulnerability Categorization (SSVC)

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History

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