# Pokemon, Umamusume Games Offline Due to PHP Vulnerability

> Critical PHP security flaw forces major gaming services offline for emergency patches.
- Title: Pokemon, Umamusume Games Offline Due to PHP Vulnerability
- Summary: Critical PHP security flaw forces major gaming services offline for emergency patches. Nintendo and Cygames services globally halted after discovering…
- Keywords: pokemon, umamusume, php, critical vulnerability, emergency maintenance, nintendo, cygames, switch online services, gaming, sports, Games, Offline
- Source: Dexerto — https://dexerto.com/pokemon/pokemon-umamusume-and-other-major-games-taken-offline-over-critical-php-vulnerability-3420823
- Author: Zackerie Fairfax
- Published: 2026-10-21T15:32:39+00:00
- Read time: 1 min
- Topics: pokemon, umamusume, php, critical vulnerability, emergency maintenance, nintendo, cygames, switch online services, gaming, sports
## Games Offline
Pokemon Sleep, Pokemon HOME, Pokemon Champions and major Japanese games taken offline for emergency maintenance.
## Outages Started
Outages began on October 21, shortly before PHP security updates for the flaws were released.
## Affected Services
Pokemon Sleep, Pokemon HOME, Pokemon Champions, Nintendo Switch 1 and 2 online services, Umamusume, Granblue Fantasy, Shadowverse, Princess Connect Re:Dive and CHUNITHM.
## PHP Vulnerability Details
Two critical PHP vulnerabilities rated 9.2 out of 10 allow unauthenticated remote code execution.
## Security Impact
Attackers could alter websites, steal information, install malicious software or attack other systems.
## Emergency Fixes
Nintendo and Cygames taking services offline to apply patches or prevent potential attacks.
## Key takeaway

Nintendo and Cygames services globally halted after discovering critical PHP vulnerabilities that allow remote code execution.