CVE-2026-49808: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 Version 24H2
CVE-2026-49808 is a race condition vulnerability in the Windows Kernel of Microsoft Windows 11 Version 24H2. It allows an authorized local attacker to elevate privileges due to improper synchronization when accessing shared resources concurrently. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft to address this issue.
AI Analysis
Technical Summary
This vulnerability involves a race condition (CWE-362) in the Windows Kernel of Windows 11 Version 24H2 (build 10.0.26100.0). Improper synchronization during concurrent execution using shared resources can be exploited by an authorized local attacker to elevate privileges. The vulnerability is confirmed and publicly disclosed with a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition vulnerability to elevate their privileges on the affected system. This can lead to full system compromise, including unauthorized access to sensitive information and control over system operations. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. It is strongly recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49808 to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
CVE-2026-49808: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 Version 24H2
Description
CVE-2026-49808 is a race condition vulnerability in the Windows Kernel of Microsoft Windows 11 Version 24H2. It allows an authorized local attacker to elevate privileges due to improper synchronization when accessing shared resources concurrently. The vulnerability has a high severity with a CVSS score of 7.8. An official fix is available from Microsoft to address this issue.
CVSS v3.1
Score 7.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition (CWE-362) in the Windows Kernel of Windows 11 Version 24H2 (build 10.0.26100.0). Improper synchronization during concurrent execution using shared resources can be exploited by an authorized local attacker to elevate privileges. The vulnerability is confirmed and publicly disclosed with a CVSS 3.1 base score of 7.8, indicating high impact on confidentiality, integrity, and availability. Microsoft has released an official fix to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition vulnerability to elevate their privileges on the affected system. This can lead to full system compromise, including unauthorized access to sensitive information and control over system operations. The vulnerability affects confidentiality, integrity, and availability of the system.
Mitigation Recommendations
An official fix is available from Microsoft. It is strongly recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49808 to remediate this vulnerability. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-01T17:02:37.208Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49808","vendor":"Microsoft"}]
Threat ID: 6a566f7268715ace43e6b6e0
Added to database: 07/14/2026, 17:18:42 UTC
Last enriched: 07/15/2026, 01:32:45 UTC
Last updated: 07/15/2026, 01:32:45 UTC
Views: 3
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