CVE-2022-31205

highpriority · track · 30OT risk · elevatedEPSS 0.007 · 52 %ileEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.68% (52nd) EPSS
CVSS 7.5 · high
Is it mine?
25 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-27

In Omron CS series, CJ series, and CP series PLCs through 2022-05-18, the password for access to the Web UI is stored in memory area D1449...D1452 and can be read out using the Omron FINS protocol without any further authentication.

01

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-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC CJ2Hcisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC CJ2Mcisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC CP1E/CP1Hcisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC CP1Lcisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC CS1H/CJ1Gcisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC CX-Programmercisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

  • MitigationSYSMAC NJ/NX Seriescisa_csaf_ot

    For CVE-2022-31205: Omron recommends using different passwords between the CP1W-CIF41 Ethernet Option Board and CP1 PLC itself. The Web UI password will not grant access to the PLC.

02

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)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USprimaryCWE-256USCWE-287US
04

affected products (25)

Products and version ranges known to be affected.

showing 20 of 25
05

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.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducisa_csaf_otnvdNVDCVE.orgMITRE
published 2022-07-26modified 2026-06-17
09

references (11)

External citations — patches, advisories, analysis.

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