CVE-2022-45794

HIGH

Omron SYSMAC CJ2H CPU66 Firmware - Unauthenticated File Read and Write via Network Protocol

Title source: llm

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.

References (2)

Core 2

Core References

Third Party Advisory

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

Vendor Advisory

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

Scores

CVSS v3 8.6

EPSS 0.0054

EPSS Percentile 40.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-306

Status published

Products (41)

omron/sysmac_cj1g-cpu42p_firmware

omron/sysmac_cj1g-cpu43p_firmware

omron/sysmac_cj1g-cpu44p_firmware

omron/sysmac_cj1g-cpu45p_firmware

omron/sysmac_cj2h-cpu64-eip_firmware

omron/sysmac_cj2h-cpu64_firmware

omron/sysmac_cj2h-cpu65-eip_firmware

omron/sysmac_cj2h-cpu65_firmware

omron/sysmac_cj2h-cpu66-eip_firmware

omron/sysmac_cj2h-cpu66_firmware

... and 31 more

Published Jan 10, 2024

Tracked Since Feb 18, 2026