CVE-2025-55245
High CVSS 7.8Published 2025-09-09 ยท last changed 2026-06-17
The fix
Microsoft fixes this in a Microsoft Store app update, so Windows Update and WSUS won't deliver it. The app at the version below, or later, has the fix.
| App | Fixed in version | Package | Released |
|---|---|---|---|
| Xbox Gaming Services | 30.104.13001.0. | Microsoft.GamingServices | 2026-11-05 |
The Store updates these apps on its own schedule. A machine with Store updates turned off, or no
Store access at all (common on managed fleets), keeps the old version.
To check one, run Get-AppxPackage -AllUsers -Name Microsoft.GamingServices and
compare its Version to the table.
What it is
Improper link resolution before file access ('link following') in Xbox allows an authorized attacker to elevate privileges locally.
Sources
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H