ICSA-26-260-02

icsaUScisa_csaf_ot

Mitsubishi Electric GX Works3 and Motion Control Settings

view advisory published 2026-09-17

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.

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-15688US——
Incorrect Implementation of Authentication Algorithm Vulnerability in Mitsubishi Electric GX Works3 and Motion Control Setting allows a local attacker to successfully authenticate…
02

references

External citations — patches, advisories, analysis.

03

remediations (4)

  • MitigationMitsubishi Electric GX Works3

    For customers of the affected products, Mitsubishi Electric recommends installing antivirus software on a computer running the affected product, to minimize the risk of exploiting this vulnerability.

  • MitigationMitsubishi Electric Motion Control Settings (Software packaged with GX Works3)

    For customers of the affected products, Mitsubishi Electric recommends installing antivirus software on a computer running the affected product, to minimize the risk of exploiting this vulnerability.

  • WorkaroundMitsubishi Electric GX Works3

    For customers using GX Works3, please download version 1.096A or later from the link https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software&kisyu=/plceng&shiryoid=1000001411&lang=2&select=0&softid=1&infostatus=1_2_1&viewradio=0&viewstatus=&viewpos=, install it, and set the security version for projects to "2". Please refer to “15.9 Preventing Illegal Access to/Falsification of Data (Security Version)” in “GX Works3 Operating Manual” for details. For more information about the workaround, refer to the Mitsubishi Electric security advisory available at "https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf".

    https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software&kisyu=/plceng&shiryoid=1000001411&lang=2&select=0&softid=1&infostatus=1_2_1&viewradio=0&viewstatus=&viewpos=
  • WorkaroundMitsubishi Electric Motion Control Settings (Software packaged with GX Works3)

    For customers using Motion Control Settings (Software packaged with GX Works3), Please download version 1.070Y or later from the link "https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software&kisyu=/ssc&shiryoid=1000000803&lang=2&select=0&softid=1&infostatus=1_8_1&viewradio=0&viewstatus=&viewpos=", install it, and set the security version for projects to "2". Please refer to “12.5 Preventing Illegal Access to/Falsification of Data (Security Version)” in “Motion Control Setting Function Help” for details. For more information about the workaround, refer to the Mitsubishi Electric security advisory at "https://www.mitsubishielectric.com/psirt/vulnerability/pdf/2026-007_en.pdf".

    https://www.mitsubishielectric.com/fa/download/software/detailsearch.page?mode=software&kisyu=/ssc&shiryoid=1000000803&lang=2&select=0&softid=1&infostatus=1_8_1&viewradio=0&viewstatus=&viewpos=
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