PHP Vulnerability Responses by Company

IDC Frontier Inc.

Japan-based services
Aliases / services
IDCフロンティア / Zenlogic / Zenlogic / ゼンロジック / IDC Frontier / IDCF / IDCフロンティア / 株式会社IDCフロンティア / IDC Frontier Inc.
Official website
https://www.idcf.jp/
Sources identifying the operating company

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

Response status by service

Zenlogic Hosting

Response status
Maintenance complete
Response information checked
2026-10-27

Current re-audit: Official response verified · Research date: 2026-10-27

Completion announced October 23. PHP 5.3 was upgraded, 7.4/8.1 patched, and other streams received minor updates.

Scope: Downgrading back to PHP 5.3 is unavailable.

What users should do

Check PHP settings in the control panel. For former PHP 5.3 sites, check forms and CMS compatibility and update code as needed.

Official service URL

Source URLs

  1. Zenlogic: Emergency PHP maintenance completedhttps://www.idcf.jp/rentalserver/maintenance/2026/20261021-2/Response evidence
  2. https://www.idcf.jp/rentalserver/maintenance/https://www.idcf.jp/rentalserver/maintenance/Service and operation documentation
  3. https://www.idcf.jp/rentalserver/news/https://www.idcf.jp/rentalserver/news/Service and operation documentation
Related official sources
  1. Zenlogic: Emergency PHP maintenance completedOfficial noticeNotice updated: 2026-10-23

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