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RTU500

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    Critical directory traversal flaw reported in Hitachi Energy RTU500●🔴 CVE-2026-8066 - Critical (9.1) A directory traversal vulnerability in the file upload functionality of Hitachi EnergyMmastodonTechnologyCybersecurity07 h ago

    A critical vulnerability, tracked as CVE-2026-8066 and scored 9.1, has been disclosed in the file upload functionality of Hitachi Energy's RTU500 remote terminal units. The flaw, which affects end-of-life versions of the device, allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system through directory traversal, potentially compromising industrial control systems.