Summary
Successful exploitation of this vulnerability could allow a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modify part of the executable module in memory, and thereby allows the attacker to view, tamper with, destroy, or delete control programs.
Vulnerabilities 1
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Critical 9.2
Password Authentication Bypass Vulnerability in GX Works3 and Motion Control Setting
Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate even with an invalid block password by executing the affected product and modif…
Revision history
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#2
Initial CISA Republication of Mitsubishi Electric 2026-007 advisory
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#1
Initial Publication
References
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Mitsubishi Electric Advisory 2026-007
https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf
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ICS Advisory ICSA-26-260-02 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-26-260-02
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Recommended Practices
https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
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Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b