MSRC-CVE-2026-58611 — Xbox Gaming Services Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Security updates
37.114.10001.0 — https://apps.microsoft.com/detail/9mwpm2cqnlhn?hl=en-us&gl=US&ocid=pdpshare

Vulnerabilities 1

High 7.8

CVE-2026-58611

Xbox Gaming Services Elevation of Privilege Vulnerability

Improper authorization in XBox Gaming Services allows an authorized attacker to elevate privileges locally.

Microsoft Xbox Gaming Services

Sep 8, 2026

Revision history

2026-09-08 #1
Information published.

References

CVE-2026-58611 Xbox Gaming Services Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58611
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss