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Gx Works3 CVE-2022-29833

MEDIUM
Insufficiently Protected Credentials (CWE-522)
2022-11-25 Mitsubishielectric.Psirt@yd.MitsubishiElectric.co.jp
Information Disclosure Gx Works3 Mitsubishielectric
6.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-522
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V6 - Authentication Credential protection in transit/storage
Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could obtain user credentials due to weak protection mechanisms by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.0% exploitation probability (EPSS)

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AnalysisAI

Insufficiently Protected Credentials vulnerability in Mitsubishi Electric Corporation GX Works3 versions 1.015R and later allows a remote unauthenticated attacker to disclose sensitive information. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Hash passwords with strong algorithms (bcrypt, argon2), encrypt credentials in transit and at rest, never log credentials.

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Technical ContextAI · show details

This vulnerability is classified as Insufficiently Protected Credentials (CWE-522), which allows attackers to obtain user credentials due to weak protection mechanisms. Insufficiently Protected Credentials vulnerability in Mitsubishi Electric Corporation GX Works3 versions 1.015R and later allows a remote unauthenticated attacker to disclose sensitive information. As a result, unauthenticated users could access to MELSEC safety CPU modules illgally. Affected products include: Mitsubishielectric Gx Works3.

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Insufficiently Protected Credentials vulnerability in Mitsubishi Electric Corporation GX Works3 versions 1.015R and later allows a remote unauthenticated attacker to disclose sensitive information. As a result, unauthenticated users could access to MELSEC safety CPU modules illgally.

Threat Intelligence Overview

EPSS Score
1.0%
Top 42% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:mitsubishielectric:gx_works3:*:*:*:*:*:*:*:*
cpe:2.3:a:mitsubishielectric:gx_works3:*:*:*:*:*:*:*:*

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Same weakness CWE-522 – Insufficiently Protected Credentials

View all
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CVE-2025-25570 CRITICAL POC
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Same technique Information Disclosure

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CVE-2019-2725 CRITICAL POC
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CVE-2021-34523 CRITICAL POC
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CVE-2013-2251 CRITICAL POC
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CVE-2017-5638 CRITICAL POC
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CVE-2025-24813 CRITICAL POC
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CVE-2025-68613 HIGH POC
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CVE-2015-1701 HIGH POC
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CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
ADVISORY https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2022-015_en.pdf REF https://jvn.jp/vu/JVNVU97244961 REF https://www.cisa.gov/uscert/ics/advisories/icsa-22-333-05

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