CISA flags Mitsubishi GX Works3 authentication bypass CVE-2026-15688
CISA published ICSA-26-260-02 for CVE-2026-15688, an incorrect authentication algorithm flaw in Mitsubishi Electric GX Works3 and Motion Control Settings. A local attacker can authenticate with an invalid block password, modify an executable module in memory, and view, tamper with, destroy, or delete control programs. CVSS score is 8.8; all versions are affected.
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Summary last validated Sep 17, 2026
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