CVE-2026-58611: CWE-285: Improper Authorization in Microsoft Xbox Gaming Services
Description
CVE-2026-58611 is an improper authorization vulnerability in Microsoft Xbox Gaming Services that allows an authorized local attacker to elevate privileges. The vulnerability affects versions from 19.0.0.0 up to but not including 37.114.10001.0. It has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft.
CVSS v3.1
Score 7.8high
Affected software
Microsoft
Xbox Gaming Services
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-58611) involves improper authorization in Xbox Gaming Services, enabling an authorized local attacker to escalate privileges. The flaw is classified under CWE-285 (Improper Authorization). The CVSS v3.1 base score is 7.8, reflecting high impact on confidentiality, integrity, and availability. The affected versions are >=19.0.0.0 and <37.114.10001.0. Microsoft has published an official fix for this issue.
Potential Impact
An authorized local attacker can exploit this vulnerability to elevate privileges, potentially gaining higher-level access than intended. This could lead to full compromise of the affected Xbox Gaming Services environment, impacting confidentiality, integrity, and availability of the service.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the vendor-provided patch promptly to remediate this vulnerability. Refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58611 for detailed update instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-01T18:03:43.125Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58611","vendor":"Microsoft"}]
Threat ID: 6aa044c5acd9273b49fa5fd9
Added to database: 09/08/2026, 17:24:21 UTC
Last enriched: 10/16/2026, 20:48:39 UTC
Last updated: 10/23/2026, 13:15:19 UTC
Views: 43
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