NVD / CVE Program· CNA icscert

CVE-2020-14523: Mitsubishi Electric Factory Automation Products Path Traversal

Noroxi assessment

Priority: Plan (action score 40/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 2.2% (FIRST EPSS); higher than 82.9% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Multiple Mitsubishi Electric Factory Automation products have a vulnerability that allows an attacker to execute arbitrary code.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Published: Feb 11, 2022
Updated: Jun 16, 2026
EPSS: 2.2% · 82th percentile
CWE: CWE-22

Report tools

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Action score

Plan

Add it to your regular patch cycle.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 9.8
CNA · icscert: 8.3; 1.5 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
mitsubishielectric	cw configurator	cpe:2.3:a:mitsubishielectric:cw_configurator
mitsubishielectric	fr configurator2	cpe:2.3:a:mitsubishielectric:fr_configurator2
mitsubishielectric	gx works2	cpe:2.3:a:mitsubishielectric:gx_works2
mitsubishielectric	gx works3	cpe:2.3:a:mitsubishielectric:gx_works3
mitsubishielectric	iu configuration tool	cpe:2.3:a:mitsubishielectric:iu_configuration_tool
mitsubishielectric	iu developer2	cpe:2.3:a:mitsubishielectric:iu_developer2
mitsubishielectric	melsoft iq appportal	cpe:2.3:a:mitsubishielectric:melsoft_iq_appportal
mitsubishielectric	melsoft navigator	cpe:2.3:a:mitsubishielectric:melsoft_navigator
mitsubishielectric	mi configurator	cpe:2.3:a:mitsubishielectric:mi_configurator
mitsubishielectric	mr configurator2	cpe:2.3:a:mitsubishielectric:mr_configurator2
mitsubishielectric	mt works2	cpe:2.3:a:mitsubishielectric:mt_works2
mitsubishielectric	mx component	cpe:2.3:a:mitsubishielectric:mx_component

and 15 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

mitsubishielectric cw configuratorup to 1.010l inclusive
mitsubishielectric fr configurator2up to 1.22y inclusive
mitsubishielectric gx works2up to 1.595v inclusive
mitsubishielectric gx works3up to 1.063r inclusive
mitsubishielectric iu configuration toolup to 1.04 inclusive
mitsubishielectric iu developer2up to 1.08 inclusive
mitsubishielectric melsoft iq appportalup to 1.17t inclusive
mitsubishielectric melsoft navigatorup to 2.70y inclusive
mitsubishielectric mi configuratorall versions
mitsubishielectric mr configurator2up to 1.110q inclusive
mitsubishielectric mt works2up to 1.156n inclusive
mitsubishielectric mx componentup to 4.20w inclusive
mitsubishielectric rd78g16 firmwareup to 10 inclusive
mitsubishielectric rd78g32 firmwareup to 10 inclusive
mitsubishielectric rd78g4 firmwareup to 10 inclusive
mitsubishielectric rd78g64 firmwareup to 10 inclusive
mitsubishielectric rd78g8 firmwareup to 10 inclusive
mitsubishielectric rd78ghv firmwareup to 10 inclusive
mitsubishielectric rd78ghw firmwareup to 10 inclusive
mitsubishielectric rt toolbox3up to 1.70y inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.

Mitsubishi Electric CW Configurator
- unspecified and later · up to and including Version 1.010Laffected
Mitsubishi Electric FR Configurator2
- unspecified and later · up to and including Version 1.22Yaffected
Mitsubishi Electric GX Works2
- unspecified and later · up to and including Version 1.595Vaffected
Mitsubishi Electric GX Works3
- unspecified and later · up to and including Version 1.063Raffected
Mitsubishi Electric MELSEC iQ-R Series Motion Module
- unspecified and later · up to and including Versions 10affected
Mitsubishi Electric MELSOFT iQ AppPortal
- unspecified and later · up to and including Version 1.17Taffected
Mitsubishi Electric MELSOFT Navigator
- unspecified and later · up to and including Version2.70Yaffected
Mitsubishi Electric MI Configurator
- All Versionsaffected
Mitsubishi Electric MR Configurator2
- unspecified and later · up to and including Version 1.110Qaffected
Mitsubishi Electric MT Works2
- unspecified and later · up to and including Versions 1.156Naffected
Mitsubishi Electric MX Component
- unspecified and later · up to and including Version 4.20Waffected
Mitsubishi Electric RT ToolBox3
- unspecified and later · up to and including Versions 1.70Yaffected

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Mashav SapirClaroty

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

jvn.jp/vu/JVNVU90224831/

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records