PatchSiren

PatchSiren cyber security CVE debrief

CVE-2023-51778 Mitsubishi Electric CVE debrief

CVE-2023-51778 is a local denial-of-service vulnerability affecting 37 Mitsubishi Electric FA engineering software products. If malicious code executes on a computer where affected software is installed, a local attacker can trigger a Windows blue screen error, resulting in denial-of-service. The vulnerability requires local access, low privileges, and user interaction, with high attack complexity. CISA published this advisory on May 14, 2024, with the most recent update (Update E) on January 15, 2026, adding version information to affected product and mitigation sections. This vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog.

Vendor
Mitsubishi Electric
Product
CPU Module Logging Configuration Tool
CVSS
MEDIUM 4.4
CISA KEV
Not listed in stored evidence
Original CVE published
2024-05-14
Original CVE updated
2026-06-09
Advisory published
2024-05-14
Advisory updated
2026-06-09

Who should care

Organizations using Mitsubishi Electric FA engineering software in industrial automation environments, particularly those with engineering workstations accessible to multiple users or connected to operational networks. System administrators responsible for maintaining PLC programming environments and industrial control system security should prioritize patching based on product deployment.

Technical summary

This vulnerability affects 37 Mitsubishi Electric FA engineering software products including GX Works2, GX Works3, GT Designer3, MX Component, and various configuration and interface tools. The vulnerability is triggered when malicious code executes on a system with affected software installed, allowing a local attacker with low privileges to cause a Windows blue screen error. The attack requires user interaction and has high complexity. CVSS 3.1 vector: AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H. Vendor fixes and mitigations are available with specific version updates required per product.

Defensive priority

medium

Recommended defensive actions

  • Apply vendor-provided updates to affected Mitsubishi Electric FA engineering software products per product-specific version guidance in the CISA advisory
  • For products without specific patch versions available, contact your place of purchase for assistance with obtaining updates
  • Implement defense-in-depth strategies for industrial control systems environments per CISA recommended practices
  • Restrict local access to engineering workstations running affected software to authorized personnel only
  • Monitor for unexpected system crashes or blue screen errors on systems running affected Mitsubishi Electric software

Evidence notes

CVE description and affected product list derived from CISA CSAF advisory ICSA-24-135-04. CVSS 3.1 score of 4.4 (MEDIUM) confirmed from source. Timeline based on CVE published date (2024-05-14) and source modification date (2026-01-15). Not a KEV entry per enrichment data.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-51778 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-51778

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2023-51778 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-51778

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2024/icsa-24-135-04.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-24-135-04

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.