株式会社クレスト

Japan-based services

Aliases / services: クレスト（府中） / 株式会社クレスト / CREST Corporation / CREST (Fuchu)
Official website: https://www.wns.co.jp/

Sources identifying the operating company

https://www.crest-web.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: Contracted maintenance environments addressed
Response information checked: 2026-10-27 Rechecked: 2026-10-27

CREST Corporation in Fuchu, Tokyo provides website development and server/domain maintenance.

Its official 23 October notice reports completing measures for the PHP vulnerabilities disclosed on 21 October in environments covered by customer maintenance contracts.

What users should do

Ask CREST which environments your maintenance contract covers and what was done for your site.

Official service URL

https://www.wns.co.jp/

Source URLs

PHP2Shell response and scopehttps://www.crest-web.jp/Response evidence
Operating entityhttps://www.wns.co.jp/crest/company.htmlService and operation documentation

Related official sources

PHP2Shell response and scopeOfficial notice
Operating entityOfficial information directory