CVE-2022-31204

Name: CVE-2022-31204
Creator: NVD / NIST
Published: 2022-07-26T22:15:11.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2022-31204 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Omron CS series, CJ series, and CP series PLCs through 2022-05-18 use cleartext passwords. They feature a UM Protection setting that allows users or system integrators to configure a password in order to restrict sensitive engineering operations (such as project/logic uploads and downloads). EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

Omron CS series, CJ series, and CP series PLCs through 2022-05-18 use cleartext passwords. They feature a UM Protection setting that allows users or system integrators to configure a password in order to restrict sensitive engineering operations (such as project/logic uploads and downloads). This password is set using the OMRON FINS command Program Area Protect and unset using the command Program Area Protect Clear, both of which are transmitted in cleartext.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.50%

39.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-319

Affected Software

Vendor	Product	Versions
Omron	Sysmac Cs1 Firmware	< 4.1
Omron	Sysmac Cj2m Firmware	< 2.1
Omron	Sysmac Cj2h Firmware	< 1.5
Omron	Sysmac Cp1e Firmware	< 1.30
Omron	Sysmac Cp1h Firmware	< 1.30
Omron	Sysmac Cp1l Firmware	< 1.10
Omron	Cp1w-Cif41 Firmware	All versions
Omron	Cx-Programmer	< 9.6

References

https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02Third Party Advisory, US Government Resource
https://www.forescout.com/blog/Third Party Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-22-179-02Third Party Advisory, US Government Resource
https://www.forescout.com/blog/Third Party Advisory

Timeline

Published: Jul 26, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-31204?

How severe is CVE-2022-31204?

CVE-2022-31204 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2022-31204?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-31204?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST