CVE-2025-3784

Credential disclosure via plaintext project-file storage

Published Nov 27, 2025 · Updated Dec 8, 2025

Cleartext credential storage in Mitsubishi Electric MELSOFT GX Works2 all versions allows local users to disclose project credentials. The project-file protection feature embeds its authentication information directly in the protected project file in plaintext. Low-privileged local access to a project file is sufficient to recover credentials, open an authenticated project, and view or modify its contents.

CVSS severity5.5
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext credential storage in Mitsubishi Electric MELSOFT GX Works2 all versions allows local users to disclose project credentials. The project-file protection feature embeds its authentication information directly in the protected project file in plaintext. Low-privileged local access to a project file is sufficient to recover credentials, open an authenticated project, and view or modify its contents.

The record

CVE
CVE-2025-3784
Published
Nov 27, 2025
Updated
Dec 8, 2025
Vendor
Mitsubishi Electric Corporation
Product
MELSOFT GX Works2
Classifications
CWE-312, T1552.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 8, 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?

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  1. Affected versionversion=All versions

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Mitsubishi Electric Corporation · MELSOFT GX Works2version=All versions

Published CVSS scores

5.5Mitsubishi Electric CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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)
Vectorlocal
Privilegesauthenticated
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.

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Technologies

Your stack

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Your stack

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