PHP Vulnerability Responses by Company

Computer System Technology

Japan-based services
Aliases / services
株式会社コンピュータシステム研究所 / CST / ALTA Revolution / ALTA concier / ROOK / OwnersVision10 / 現場トレーナー / Computer System Technology
Official website
https://www.cstnet.co.jp/

Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.

Response status by service

Listed services and systems

Response status
Listed suspended functions restored
Response information checked
2026-10-27 Rechecked: 2026-10-27

Construction and architectural software

ALTA Revolution distributedrendering and AI Navi have also resumed; the listed stoppage ends October26 16:00. GenbaTrainer, civil-product support/delivery, ROOK and OwnersVision10 are restored.

What users should do

Check the official product table for available and suspended functions.

Official service URL

Source URLs

  1. Service suspensions for PHP remediationhttps://www.cstnet.co.jp/topics/261022m.htmlResponse evidence
  2. Company and operator informationhttps://www.cstnet.co.jp/company/outline.htmlService and operation documentation
Related official sources
  1. Service suspensions for PHP remediationOfficial notice
  2. Company and operator informationOfficial information directory

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