🛡️ CVE-2023-0811
9.1
CVSS Score
0 Low4 Medium7 High9 Critical10
Description
Omron CJ1M unit v4.0 and prior has improper access controls on the memory region where the UM password is stored. If an adversary issues a PROGRAM AREA WRITE command to a specific memory region, they could overwrite the password. This may lead to disabling UM protections or setting a non-ASCII password (non-keyboard characters) and preventing an engineer from viewing or modifying the user program.
Details
Severity
CRITICAL
CVSS Score
9.1
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE
CWE-284
Public Exploit
✅ No
Source
NVD
Published
2023-03-16
Updated
2026-06-08
Modified
2024-11-21
Fix URL
N/A
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| sysmac-cj2h-cpu64-eip-firmware | — | — |
| sysmac-cj2h-cpu64-firmware | — | — |
| sysmac-cj2h-cpu65-eip-firmware | — | — |
| sysmac-cj2h-cpu65-firmware | — | — |
| sysmac-cj2h-cpu66-eip-firmware | — | — |
| sysmac-cj2h-cpu66-firmware | — | — |
| sysmac-cj2h-cpu67-eip-firmware | — | — |
| sysmac-cj2h-cpu67-firmware | — | — |
| sysmac-cj2h-cpu68-eip-firmware | — | — |
| sysmac-cj2h-cpu68-firmware | — | — |
| sysmac-cj2m-cpu11-firmware | — | — |
| sysmac-cj2m-cpu12-firmware | — | — |
| sysmac-cj2m-cpu13-firmware | — | — |
| sysmac-cj2m-cpu14-firmware | — | — |
| sysmac-cj2m-cpu15-firmware | — | — |
| sysmac-cj2m-cpu31-firmware | — | — |
| sysmac-cj2m-cpu32-firmware | — | — |
| sysmac-cj2m-cpu33-firmware | — | — |
| sysmac-cj2m-cpu34-firmware | — | — |
| sysmac-cj2m-cpu35-firmware | — | — |
| sysmac-cp1e-e10dr-a-firmware | — | — |
| sysmac-cp1e-e10dr-d-firmware | — | — |
| sysmac-cp1e-e10dt-a-firmware | — | — |
| sysmac-cp1e-e10dt-d-firmware | — | — |
| sysmac-cp1e-e10dt1-a-firmware | — | — |
| sysmac-cp1e-e10dt1-d-firmware | — | — |
| sysmac-cp1e-e14dr-a-firmware | — | — |
| sysmac-cp1e-e14sdr-a-firmware | — | — |
| sysmac-cp1e-e20dr-a-firmware | — | — |
| sysmac-cp1e-e20sdr-a-firmware | — | — |
| sysmac-cp1e-e30dr-a-firmware | — | — |
| sysmac-cp1e-e30sdr-a-firmware | — | — |
| sysmac-cp1e-e40dr-a-firmware | — | — |
| sysmac-cp1e-e40sdr-a-firmware | — | — |
| sysmac-cp1e-e60sdr-a-firmware | — | — |
| sysmac-cp1e-na20dr-a-firmware | — | — |
| sysmac-cp1e-na20dt-d-firmware | — | — |
| sysmac-cp1e-na20dt1-d-firmware | — | — |
| sysmac-cp1h-x40dr-a-firmware | — | — |
| sysmac-cp1h-x40dt-d-firmware | — | — |
| sysmac-cp1h-x40dt1-d-firmware | — | — |
| sysmac-cp1h-xa40dr-a-firmware | — | — |
| sysmac-cp1h-xa40dt-d-firmware | — | — |
| sysmac-cp1h-xa40dt1-d-firmware | — | — |
| sysmac-cp1h-y20dt-d-firmware | — | — |
| sysmac-cp1l-el20dr-d-firmware | — | — |
| sysmac-cp1l-em30dr-d-firmware | — | — |
| sysmac-cp1l-em30dt-d-firmware | — | — |
| sysmac-cp1l-em30dt1-d-firmware | — | — |
| sysmac-cp1l-em40dr-d-firmware | — | — |
| sysmac-cp1l-em40dt-d-firmware | — | — |
| sysmac-cp1l-em40dt1-d-firmware | — | — |
| sysmac-cp1l-l10dr-a-firmware | — | — |
| sysmac-cp1l-l10dr-d-firmware | — | — |
| sysmac-cp1l-l10dt-a-firmware | — | — |
| sysmac-cp1l-l10dt-d-firmware | — | — |
| sysmac-cp1l-l10dt1-d-firmware | — | — |
| sysmac-cp1l-l14dr-a-firmware | — | — |
| sysmac-cp1l-l14dr-d-firmware | — | — |
| sysmac-cp1l-l14dt-a-firmware | — | — |
| sysmac-cp1l-l14dt-d-firmware | — | — |
| sysmac-cp1l-l14dt1-d-firmware | — | — |
| sysmac-cp1l-l20dr-a-firmware | — | — |
| sysmac-cp1l-l20dr-d-firmware | — | — |
| sysmac-cp1l-l20dt-a-firmware | — | — |
| sysmac-cp1l-l20dt-d-firmware | — | — |
| sysmac-cp1l-l20dt1-d-firmware | — | — |
| sysmac-cp1l-m30dr-a-firmware | — | — |
| sysmac-cp1l-m30dr-d-firmware | — | — |
| sysmac-cp1l-m30dt-a-firmware | — | — |
| sysmac-cp1l-m30dt-d-firmware | — | — |
| sysmac-cp1l-m30dt1-d-firmware | — | — |
| sysmac-cp1l-m40dr-a-firmware | — | — |
| sysmac-cp1l-m40dr-d-firmware | — | — |
| sysmac-cp1l-m40dt-a-firmware | — | — |
| sysmac-cp1l-m40dt-d-firmware | — | — |
| sysmac-cp1l-m40dt1-d-firmware | — | — |
| sysmac-cp1l-m60dr-a-firmware | — | — |
| sysmac-cp1l-m60dr-d-firmware | — | — |
| sysmac-cp1l-m60dt-a-firmware | — | — |
| sysmac-cp1l-m60dt-d-firmware | — | — |
| sysmac-cp1l-m60dt1-d-firmware | — | — |
| sysmac-cp2e-e14dr-a-firmware | — | — |
| sysmac-cp2e-e20dr-a-firmware | — | — |
| sysmac-cp2e-e30dr-a-firmware | — | — |
| sysmac-cp2e-e40dr-a-firmware | — | — |
| sysmac-cp2e-e60dr-a-firmware | — | — |
| sysmac-cp2e-n14dr-a-firmware | — | — |
| sysmac-cp2e-n14dr-d-firmware | — | — |
| sysmac-cp2e-n14dt-a-firmware | — | — |
| sysmac-cp2e-n14dt-d-firmware | — | — |
| sysmac-cp2e-n14dt1-d-firmware | — | — |
| sysmac-cp2e-n20dr-a-firmware | — | — |
| sysmac-cp2e-n20dr-d-firmware | — | — |
| sysmac-cp2e-n20dt-a-firmware | — | — |
| sysmac-cp2e-n20dt-d-firmware | — | — |
| sysmac-cp2e-n20dt1-d-firmware | — | — |
| sysmac-cp2e-n30dr-a-firmware | — | — |
| sysmac-cp2e-n30dr-d-firmware | — | — |
| sysmac-cp2e-n30dt-a-firmware | — | — |
| sysmac-cp2e-n30dt-d-firmware | — | — |
| sysmac-cp2e-n30dt1-d-firmware | — | — |
| sysmac-cp2e-n40dr-a-firmware | — | — |
| sysmac-cp2e-n40dr-d-firmware | — | — |
| sysmac-cp2e-n40dt-a-firmware | — | — |
| sysmac-cp2e-n40dt-d-firmware | — | — |
| sysmac-cp2e-n40dt1-d-firmware | — | — |
| sysmac-cp2e-n60dr-a-firmware | — | — |
| sysmac-cp2e-n60dr-d-firmware | — | — |
| sysmac-cp2e-n60dt-a-firmware | — | — |
| sysmac-cp2e-n60dt-d-firmware | — | — |
| sysmac-cp2e-n60dt1-d-firmware | — | — |
| sysmac-cp2e-s30dr-a-firmware | — | — |
| sysmac-cp2e-s30dt-d-firmware | — | — |
| sysmac-cp2e-s30dt1-d-firmware | — | — |
| sysmac-cp2e-s40dr-a-firmware | — | — |
| sysmac-cp2e-s40dt-d-firmware | — | — |
| sysmac-cp2e-s40dt1-d-firmware | — | — |
| sysmac-cp2e-s60dr-a-firmware | — | — |
| sysmac-cp2e-s60dt-d-firmware | — | — |
| sysmac-cp2e-s60dt1-d-firmware | — | — |
| sysmac-cs1w-drm21-v1-firmware | — | — |
| sysmac-cs1w-eip21-firmware | — | — |
| sysmac-cs1w-etn21-firmware | — | — |
| sysmac-cs1w-fln22-firmware | — | — |
| sysmac-cs1w-nc\[\]71-firmware | — | — |
| sysmac-cs1w-spu01-v2-firmware | — | — |
| sysmac-cs1w-spu02-v2-firmware | — | — |
References
Third Party Advisory, US Government Resource https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-01
Mitigation, Vendor Advisory https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf
Third Party Advisory, US Government Resource https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-01
Mitigation, Vendor Advisory https://www.ia.omron.com/product/vulnerability/OMSR-2023-001_en.pdf
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