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Fencer Vulns
high 7.8

CVE-2023-5247 json

Malicious Code Execution Vulnerability due to External Control of File Name or Path in multiple Mitsubishi Electric FA Engineering Software…

published 2023-11-30 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-57572

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits
0
none known

Summary

Malicious Code Execution Vulnerability due to External Control of File Name or Path in multiple Mitsubishi Electric FA Engineering Software Products allows a malicious attacker to execute a malicious code by having legitimate users open a specially crafted project file, which could result in information disclosure, tampering and deletion, or a denial-of-service (DoS) condition.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-334-04 updated cvss 7.8

Mitsubishi Electric FA Engineering Software Products

  • Mitsubishi Electric GX Works3 Mitsubishi Electric MELSOFT iQ AppPortal Mitsubishi Electric MELSOFT Navigator Mitsubishi Electric Motion Control Setting (Software packaged with GX Works3)
    affected: mitigation “Mitsubishi Electric recommends that customers take the following mitigation measures to minimize the risk of exploiting this vulnerability:” mitsubishielectric.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Mitsubishi Electric Corporation GX Works3
  • Mitsubishi Electric Corporation MELSOFT iQ AppPortal
  • Mitsubishi Electric Corporation MELSOFT Navigator
  • Mitsubishi Electric Corporation Motion Control Setting

Classification

Weakness
  • CWE-73 External Control of File Name or Path
  • CWE-610 Externally Controlled Reference to a Resource in Another Sphere

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.