CVE-2022-25164Network attack vector

Credential disclosure via cleartext project and configuration storage

Published Nov 24, 2022 · Updated Apr 25, 2025

Cleartext storage in affected GX Works3 and MX OPC UA Module Configurator-R releases allows remote attackers to disclose credentials. Project files and security keys on GX Works3 hosts, and configuration files used by MX OPC UA Module Configurator-R, retain authentication material in cleartext instead of protecting it at rest. Network access to those files is sufficient to obtain unauthorized access to MELSEC CPU or OPC UA server modules; affected releases are GX Works3 1.000A through 1.095Z and MX OPC UA Module Configurator-R 1.08J and earlier.

CVSS severity8.6
High
EPSS probability0.82%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext storage in affected GX Works3 and MX OPC UA Module Configurator-R releases allows remote attackers to disclose credentials. Project files and security keys on GX Works3 hosts, and configuration files used by MX OPC UA Module Configurator-R, retain authentication material in cleartext instead of protecting it at rest. Network access to those files is sufficient to obtain unauthorized access to MELSEC CPU or OPC UA server modules; affected releases are GX Works3 1.000A through 1.095Z and MX OPC UA Module Configurator-R 1.08J and earlier.

The record

CVE
CVE-2022-25164
Published
Nov 24, 2022
Updated
Apr 25, 2025
Vendor
Mitsubishi Electric Corporation
Product
GX Works3
Classifications
CWE-312, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=from 1.000A to 1.095Z

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mitsubishi Electric Corporation · GX Works3version=from 1.000A to 1.095Z
Mitsubishi Electric Corporation · MX OPC UA Module Configurator-Rversion=1.08J and prior

Published CVSS scores

8.6Mitsubishi Electric CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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