CVE-2026-8066

Vendor

Hitachi Energy

Product

Hitachi Energy grid products, Industrial automation (Japan / robotics)

CVSS

9.1

Exposure class

OT / ICS

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 23
   CVE NVD 29 Sep 2026

   A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker…

   A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Depending on…

   CVSS 9.1 No fix yet CVE-2026-8066 Hitachi Energy
2. 21
   CISA advisory CISA 25d ago

   Hitachi Energy RTU500

   Hitachi Energy is publishing this cybersecurity advisory in response to the security findings reported by Dragos affecting end-of-life RTU500 CMU firmware version 9.x. The reported findings are associated with legacy RTU500…

   CVSS 3.1 No fix yet CVE-2026-8065CVE-2026-8066CVE-2026-8067+3 more Hitachi Energy