{"id":"CVE-2022-45794","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-45794","generatedAt":"2026-10-27T21:09:10.142Z","title":"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.","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.\n","published":"2024-01-10T23:15:08.000Z","lastModified":"2026-06-17T05:10:45.000Z","status":"Modified","sourceIdentifier":"ot-cert@dragos.com","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-306"],"affected":["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","omron/sysmac cj2h-cpu67-eip firmware","omron/sysmac cj2h-cpu67 firmware","omron/sysmac cj2h-cpu68-eip firmware","omron/sysmac cj2h-cpu68 firmware","omron/sysmac cj2m-cpu11 firmware","omron/sysmac cj2m-cpu12 firmware","omron/sysmac cj2m-cpu13 firmware","omron/sysmac cj2m-cpu14 firmware","omron/sysmac cj2m-cpu15 firmware","omron/sysmac cj2m-cpu31 firmware","omron/sysmac cj2m-cpu32 firmware","omron/sysmac cj2m-cpu33 firmware","omron/sysmac cj2m-cpu34 firmware","omron/sysmac cj2m-cpu35 firmware","omron/sysmac cj1g-cpu45p firmware","omron/sysmac cj1g-cpu44p firmware","omron/sysmac cj1g-cpu43p firmware","omron/sysmac cj1g-cpu42p firmware","omron/sysmac cs1h-cpu63h firmware","omron/sysmac cs1h-cpu65h firmware","omron/sysmac cs1h-cpu67h firmware","omron/sysmac cs1h-cpu64h firmware","omron/sysmac cs1h-cpu66h firmware","omron/sysmac cs1g-cpu44h firmware","omron/sysmac cs1g-cpu43h firmware","omron/sysmac cs1g-cpu42h firmware","omron/sysmac cs1g-cpu45h firmware","omron/sysmac cs1d-cpu65h firmware","omron/sysmac cs1d-cpu67h firmware","omron/sysmac cs1d-cpu68ha firmware","omron/sysmac cs1d-cpu67ha firmware","omron/sysmac cs1d-cpu65p firmware","omron/sysmac cs1d-cpu67sa firmware","omron/sysmac cs1d-cpu44sa firmware","omron/sysmac cs1d-cpu67p firmware"],"epss":{"score":0.00536,"percentile":0.44913,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.54%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/","tags":["Third Party Advisory"],"source":"ot-cert@dragos.com"},{"url":"https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf","tags":["Vendor Advisory"],"source":"ot-cert@dragos.com"},{"url":"https://www.dragos.com/advisory/omron-plc-and-engineering-software-network-and-file-format-access/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2023-002_en.pdf","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-45794","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}