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Status published
High
CVE-2022-45794
Omron CJ-series and CS-series unauthenticated filesystem access.
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Reid Wightman of Dragos, Inc.
References
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Affected Vendor
Omron
View all reports →Affected Software
CJ-series and CS-series CPU modules
Vulnerable Versions:
0
Timeline
Official Publish:
January 10th, 2024
Last Modified:
May 22nd, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N