Hitachi Energy RTU500

View CSAF Summary 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 firmware versions that were developed according to the cybersecurity requirements, threat landscape, and industry practices that existed at the time of their

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Threat CriticalSingle SourceAgencyConf ConfirmedUnited States · North AmericaPublishedStatus: PublishedCERTOpen original source

Original publisher

CERT

Original source URL

https://www.cisa.gov/news-events/ics-advisories/icsa-26-279-06

Source country

United States

Reporting region

North America

Language

Institution

CISA US-CERT

Published (UTC)

Oct 6, 2026, 12:00 PM

Ingested (UTC)

Oct 16, 2026, 3:02 PM

Verification

Single Source

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Hitachi Energy RTU500
Advisory ID: icsa-26-279-06
View CSAF Summary 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 firmware versions that were developed according to the cybersecurity requirements, threat landscape, and industry practices that existed at the time of their 
Severity: critical
Published (UTC): 2026-10-06T12:00:00.000Z
Source: CERT
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-279-06

View original source