Local privilege escalation via improper authorization
Published Sep 8, 2026 · Updated Sep 9, 2026
Improper authorization in Microsoft Xbox Gaming Services before 37.114.10001.0 allows local users to elevate privileges. Microsoft has not disclosed the affected service interface, privileged operation, or authorization check that mishandles attacker-controlled input. Exploitation requires an existing low-privilege account and local execution, needs no other user interaction, and grants elevated access within the same security authority.
Summary
What happened
Improper authorization in Microsoft Xbox Gaming Services before 37.114.10001.0 allows local users to elevate privileges. Microsoft has not disclosed the affected service interface, privileged operation, or authorization check that mishandles attacker-controlled input. Exploitation requires an existing low-privilege account and local execution, needs no other user interaction, and grants elevated access within the same security authority.
The record
- CVE
- CVE-2026-58611
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Xbox Gaming Services
- Classifications
- CWE-285, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=19.0.0.0 <37.114.10001.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo