CVE-2026-50440: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 Version 24H2
CVE-2026-50440 is a race condition vulnerability in the Windows Audio Service of Microsoft Windows 11 Version 24H2. It allows a locally authorized attacker to elevate privileges due to improper synchronization when accessing shared resources. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-50440) involves a concurrent execution issue using a shared resource with improper synchronization in the Windows Audio Service on Windows 11 Version 24H2 (build 10.0.26100.0). The race condition can be exploited by an authorized local attacker to elevate privileges. The CVSS 3.1 vector indicates local attack vector, low attack complexity, required privileges, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected system, potentially gaining higher-level access than intended. This could lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50440. No additional mitigations are indicated by the vendor advisory.
CVE-2026-50440: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 Version 24H2
Description
CVE-2026-50440 is a race condition vulnerability in the Windows Audio Service of Microsoft Windows 11 Version 24H2. It allows a locally authorized attacker to elevate privileges due to improper synchronization when accessing shared resources. The vulnerability 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
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-50440) involves a concurrent execution issue using a shared resource with improper synchronization in the Windows Audio Service on Windows 11 Version 24H2 (build 10.0.26100.0). The race condition can be exploited by an authorized local attacker to elevate privileges. The CVSS 3.1 vector indicates local attack vector, low attack complexity, required privileges, no user interaction, and high impact on confidentiality, integrity, and availability. Microsoft has published an official fix to address this vulnerability.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected system, potentially gaining higher-level access than intended. This could lead to full system compromise depending on the privileges gained. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. It is recommended to apply the security update provided by Microsoft as detailed in their advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50440. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-04T18:57:47.376Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50440","vendor":"Microsoft"}]
Threat ID: 6a56769f68715ace43f09473
Added to database: 07/14/2026, 17:49:19 UTC
Last enriched: 07/14/2026, 23:33:57 UTC
Last updated: 07/14/2026, 23:33:57 UTC
Views: 2
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