CVE-2022-31204

highpriority · track · 30OT risk · elevatedEPSS 0.007 · 52 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.67% (52nd) EPSS

CVSS 7.5 · high

Is it mine?

29 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationCP1W-CIF41cisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC CJ2Hcisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC CJ2Mcisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC CP1E/CP1Hcisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC CP1Lcisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC CS1H/CJ1Gcisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC CX-Programmercisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later
MitigationSYSMAC NJ/NX Seriescisa_csaf_ot
For CVE-2022-31204: Omron recommends users implement an extended password protection function in the following product versions: CJ2H: v1.5 or later

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · CISA US

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-319USprimaryCWE-319USCWE-319US

affected products (29)

Products and version ranges known to be affected.

CP1W-CIF41: All versionsall versionscisa_csaf_otUS
SYSMAC CJ2H: Versions prior to 1.5all versionscisa_csaf_otUS
SYSMAC CJ2M: Versions prior to 2.1all versionscisa_csaf_otUS
SYSMAC CP1E/CP1H: Versions prior to 1.30all versionscisa_csaf_otUS
SYSMAC CP1L: Versions prior to 1.10all versionscisa_csaf_otUS
SYSMAC CS1: Versions prior to 4.1all versionscisa_csaf_otUS
SYSMAC CX-Programmer: Versions prior to 9.6all versionscisa_csaf_otUS
SYSMAC NJ/NX Series: Versions prior to 1.49 (1.29 for NX7)all versionscisa_csaf_otUS
Omron CP1W-CIF41all versionscisa_csaf_otUS
Omron SYSMAC CJ2H< 1.5cisa_csaf_otUS
Omron SYSMAC CJ2M< 2.1cisa_csaf_otUS
Omron SYSMAC CP1E/CP1H< 1.30cisa_csaf_otUS
Omron SYSMAC CP1L< 1.10cisa_csaf_otUS
Omron SYSMAC CS1H/CJ1G< 4.1cisa_csaf_otUS
Omron SYSMAC CX-Programmer< 9.6cisa_csaf_otUS
Omron SYSMAC NJ/NX Series< 1.49 (1.29 for NX7)cisa_csaf_otUS
n/a n/a≤ n/aenisa_euvdEU
Omron Electronics LLC SYSMAC CJ1all versionsfstec_bduRU
Omron Electronics LLC SYSMAC CP1all versionsfstec_bduRU
Omron Electronics LLC SYSMAC CP2all versionsfstec_bduRU

showing 20 of 29

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-22-179-02Omron SYSMAC CS/CJ/CP Series and NJ/NX Series2022-06-28icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could cause a denial-of-service condition and allow remote code execution.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot NVD CVE.org MITRE

published 2022-07-26modified 2026-06-17

related (1,183)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2022-22948US	medium6.5OT critical	13.3% (96th)	KEV	2022-03-29
The vCenter Server contains an information disclosure vulnerability due to improper permission of files. A malicious actor with non-administrative access to the vCenter Server may…
CVE-2018-12710US	high8.0OT high	76.5% (100th)	Exploit	2018-08-29
An issue was discovered on D-Link DIR-601 2.02NA devices. Being local to the network and having only "User" account (which is a low privilege account) access, an attacker can inter…
CVE-2017-5259US	high8.8OT high	33.3% (98th)	Exploit	2017-12-20
In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, an undocumented, root-privilege administration web shell is available using the HTTP path https://<device-ip-or…
CVE-2018-1297US	critical9.8OT high	11.5% (96th)	Exploit	2018-02-13
When using Distributed Test only (RMI based), Apache JMeter 2.x and 3.x uses an unsecured RMI connection. This could allow an attacker to get Access to JMeterEngine and send unauth…
CVE-2017-3737US	medium5.9OT high	78.7% (100th)	—	2017-12-07
OpenSSL 1.0.2 (starting from version 1.0.2b) introduced an "error state" mechanism. The intent was that if a fatal error occurred during a handshake then OpenSSL would move into th…

+1178 more

references (11)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan